Showing posts with label Stealth Technology. Show all posts
Showing posts with label Stealth Technology. Show all posts

Friday, December 17, 2010

Image of the Week: Kadena Raptors

OKINAWA RAPTORS
The image above depicts six F-22As from the 27th FS, 1st FW at Langley AFB, Virginia. The Raptors were deployed to Kadena AB, Okinawa for a 120-day theater security deployment over the first quarter of 2010. The Raptors imaged above are seen prior to departure from Kadena, as evidenced by the presence of external fuel tanks carried for long-range travel. The external fuel tanks are often used to support deployments. They have also been noted underwing of Alaska-based F-22s performing intercept missions against Russian strategic bombers, likely providing an additional fuel reserve for overwater sorties.

ADDITIONAL DISCUSSION

Feel free to discuss the current Image of the Week at the IMINT & Analysis Forum Image of the Week discussion thread found here.

SOURCES

-Satellite imagery provided courtesy of Google Earth

Tuesday, March 16, 2010

IMINT & Analysis Photo Archive

Digital Photography

I've been an amateur photographer for a few years now, and have built up a pretty large battery of images. I'm going to be using more of them in some upcoming projects for this site, but I figured I'd post a list of the military-themed objects I've photographed and make them available to readers here who are researching some of these items. What you'll find below is a list containing the location I took the photos and the year I was there, followed by the items photographed at that location. Most of these are static images, but some of them, particularly those taken at military open houses, are of aircraft in the air. I was as detailed as I could be from memory looking at the images, so if you see something like "F-4" instead of "F-4G", ask me and I can tell you what the specific model or variant is that I have images of from a given location. The majority of the subjects were shot from numerous angles, and most of them have a number of close-up detail shots as well (equipment bays, antennae, hardpoints, intakes, etc). Anything 2007 and later was taken with a Canon EOS30D DSLR, those images are of a bit better quality on average, particularly of aircraft in the sky. Also, some of them do feature dust spots, as it did take me a while to learn how to clean the sensor on the camera!

Obtaining Images

To obtain digital copies of any of these images for research or personal use, send me an e-mail with a listing of what it is you'd like and what you are requesting the images for, and I'll do my best to accomodate you as soon as possible.

If you wish to obtain images for publication in any fashion (web, periodical, book, etc), I don't charge a fee but I do request the following:
-Credit as the photographer; and
-A copy of the periodical or other hardcopy publication you use them in, or
-A link to this specific page of the website if the images are to be used online

Hampton Roads Air Power Park - 2005
AIM-4D
F-86D
F-89
F-101B
F-105
NIKE-AJAX
NIKE-ZEUS
RF-4E
XV-6A Kestrel

Langley AFB Open House - 2007
A-10
B-1B
B-2A
C-130
F-15C
F/A-18F
F-22A
F-35A mockup
F-86
F-117A
US Air Force Heritage Flight: A-10, F-15C, F-22A, F-86
US Air Force Thunderbirds
US Navy Heritage Flight: F/A-18F, F4F

Langley AFB Open House - 2008
A-10
B-1B
B-17
C-17
C-130
E-2C
F-4E
F-15C
F-15E
F-16
F/A-18F
F-22A
F-35 mockup
KC-10A
P-51
Spitfire
T-45A
Royal Air Force Red Arrows
US Air Force Heritage Flight: F-4E, F-15E, F-22A

Langley AFB Open House - 2009
A-4
B-52
C-17
C-130
F-4E
F-15C
F-16
F-21A Kfir
F-22A
F/A-18C
KC-135R
P-51
Sea Harrier FRS.2
T-33
US Air Force Heritage Flight: F-4E, F-15C, F-22A, P-51
US Air Force Thunderbirds
US Navy Heritage Flight: F/A-18C, F4F

McConnell AFB - 2003
C-130
KC-135R
Saab Gripen

McConnell AFB Open House - 2003
A-10
B-1B
B-17
B-25
B-52D
C-17
CF-188
CP-140
E-6A
F-16
F/A-18C
F-117A
M-109 Paladin
MiG-15UTI
MLRS
Tornado IDS Luftwaffe
T-38A

McConnell AFB Open House - 2004
A6M Zero
AT-6
B-1B
B-2
B-17
B-25
Canadian Air Force Snowbirds
DC-3
F-15
F-16
KC-135R
Learjet 23
P-51
Pearl Harbor Display Flight: A6M, P-51
US Air Force Heritage Flight: F-16, P-51

McConnell AFB Open House - 2006
US Air Force Thunderbirds

McGuire AFB BOMARC Site - 2007
Various shots from outside the now-contaminated site's fenceline

McGuire AFB Open House - 2007
A-10
F-4E
US Army Golden Knights
US Air Force Heritage Flight: A-10, F-4E, P-51
US Air Force Thunderbirds

National Air And Space Museum Udvar Hazy Annex - 2006
707
AGM-76A
AGM-86A
AGM-86B
AIM-120
ASM-135 ASAT
B-29 Enola Gay
Concorde
Corona capsule
Do-335A
F-4
Ho-111h
Homing Overlay Experiment
MiG-21
Reinochter R-1
RIM-8J Talos
Ruhrstahl
SA-2
Silkworm
Space Shuttle Enterprise
SR-71A
X-35B
XAAM-N-3 Sparrow II
XV-15

USAF Museum - scans of old photos taken before I went digital
AIM-4A
AIM-4C
AIM-4D
AIM-4F
AIM-4G
AIM-7
AIM-9
AIM-26B
AIM-120
AIR-2
B-1A
CIM-10
MiG-23MLD

USAF Museum - 2003
A-10
A-37
AC-130
ADM-20
AGM-28
AGM-86B
AGM-129
AGM-131
AIM-4A
AIM-4D
AIM-4F
AIM-4G
AIM-9M
AIM-26B
AIR-2
AN/TPS-1B
Apollo capsule
B-1B
B-2 Iron Bird
B-29 Bock's Car
B-58
Bird Of Prey
BLU-82
C-45H
C-54C
C-118
C-121
CIM-10
D-21B
EF-111A
F-4G
F-15
F-16 AFTI
F-16 Thunderbird
F-100D Thunderbird
F-101B
F-102A
F-105
F-106
F-107A
F-111A
F-111F
F-117A
Fritz-X
GBU-15
Gemini capsule
J-3C-65-8
LANTIRN
MiG-21
MiG-23MLD
Mercury capsule
Model 24 C8F
NT-33A
PA-48
P-51D
P-59B
P-80R
R-13 Atoll
RF-4C
RQ-1
RQ-3
RQ-4
SA-2
SR-71A
T-39A
TACIT BLUE
TACT RAINBOW
Tornado GR.1 RAF
U-4B
UH-13J
V-1
V-2
VC-6A
VC-137A
VC-140B
X-1B
X-3
X-4 Ruhrstahl
X-4
X-5
X-10
X-15
X-24A
X-24B
X-25A
X-29
X-36
X-45
XB-70 Valkyrie
XC-142A
XF-84H
XF-85
XF-91
XF-92
XGAM-63
XH-20
XV-6A
YF-12A
YF-22A
YFH-84H
ZPU-2
ZPU-4

USAF Museum - 2004
AIM-4A
AIM-4D
AIM-4F
AIM-4G
AIM-120
B-2 Iron Bird
B-47
B-57
B-58
BGM-109
D-21B
EF-111A
F-16 Thunderbird
F-101B
F-117A
GBU-24
Mark 41
MiG-23MLD
RF-4C
SR-71A
TACIT BLUE
TACIT RAINBOW
Tornado GR.1 RAF
X-45

USAF Museum - 2005
A-7
ADM-20
AGM-28
AGM-129
B-26K
B-66
CF-100
CGM-13
D-21B
EC-121
EC-135E
Fat Man device
F-4G
F-84
F-100
F-111F
EF-111A
F-117A
MiG-17
MiG-19
Minuteman RV test shape
NKC-135
Peacekeeper railcar
RF-4C
SA-2
SICBM TEL
SR-71A
U-2

USAF Museum - 2007
AGM-129
AGM-131
B-2 Iron Bird
Bird Of Prey
CBU-58
D-21B
DH.89 Dominie
F-16 AFTI
F-102A
F-107A
GBU-12
LoFLYTE
MiG-19
SR-71A Blackbird
TACIT BLUE
X-10
X-13
X-29
XB-70 Valkyrie
XF-91 Thunderceptor
XH-20
XV-6A Kestrel
YF-12A Blackbird
YF-22A
YQM-94A

USAF Museum - 2009
AC-130A
AGM-129
AGM-131
Avrocar
Bird Of Prey
C-119J
C-141C
D-21
EC-135E
F-4G
F-22A
F-106A
F-107A
F-117A
Ju-52
MiG-29
NC-131H
NKC-135A
Peacekeepeer railcar
SA-2
SICBM TEL
SR-71A
TACIT BLUE
TACIT RAINBOW
Tornado GR.1 RAF
X-40A
X-45
XB-70A
XV-3
YC-125B
YF-12A
YF-23A

USS Intrepid Sea, Air, and Space Museum - 2005
A-4
A-6F
A-12 Blackbird
AGM-84
AV-8A
BGM-109
Concorde
Dassault Etendard IVP
F7U
F-4
F-8
F-14B
Gemini capsule
IAI Kfir F-21A
Mb-339
Mercury capsule
RGM-6
Standard SM-1
T-72

Virginia Aviation Museum - 2005
SR-71A

Monday, December 14, 2009

Foreign RCS Ranges

INTRODUCTION

Radar cross section (RCS) measurement facilities are integral components in designing a modern combat aircraft. With the proliferation of advanced SAM systems capable of engaging reduced- and possibly low-RCS targets, such as the Russian S-300P series, attention to an aircraft's radar signature is becoming increasingly important to the success of a major air combat operation. This article will detail known foreign RCS measurement facilities, as well as providing an update to a previous feature on American facilities.

WESTERN EUROPE

Many of the world's major combat aircraft are designed and built in Western Europe. It should come as no suprise that there are RCS measurement facilities located on the grounds of British Aerospace, EADS, and in France.

BAe Warton

BAe Warton is home to an RCS facility comparable to many of those seen in the United States. Supporting BAe's work on low-RCS designs, such as the Replica, and potentially aiding the Eurofighter program, the RCS range is situated on the grounds of BAe Systems' Warton airfield. A retractable hangar allows for test articles to be hidden from view, while a possible secondary measurement platform allows for objects not fitting inside the hangar to be evaluated.

BAe Warton's RCS facility can be seen in the image below:
EADS Manching

A much simpler RCS facility exists on the grounds of EADS' Manching airfield in southern Germany. This facility consists of a relocatable radar array and a pedestal or tower for mounting test objects. This facility likely supports signature reduction work for the EF-2000 and other European aircraft programs. The relatively "unhidden" facility suggests that it may be used for evaluating existing airframes, with more sensitive designs being tested elsewhere.

EADS' Manching RCS facility can be seen in the image below:
France

France's SOLANGE RCS facility is an expansive, fully indoor RCS measurement complex. SOLANGE is operated by CELAR, part of the French Defense Ministry, and is large enough to mount a full-scale aircraft or test article indoors. SOLANGE is significant as it was employed in 2005 to test a model of Japan's ATD-X stealth demonstrator.

France's SOLANGE RCS facility can be seen in the image below:
Sweden

The Swedish Defense Agency (FOI) is believed to operate an anechoic chamber at Linkoping AB for conducting RCS evaluations. It is not known if the facility mounts full-size aircraft or reduced-size test articles, but the positioning of a facility which may be the RCS measurement complex in question suggests that an aircraft such as a Saab Gripen could be taxied into the chamber.

Sweden's Linkoping possible RCS facility can be seen in the image below:
RUSSIA

Two large outdoor RCS measurement ranges currently exist inside of Russia. It is not currently known if individual manufacturers are affiliated with a certain facility. A former RCS measurement ranges were located at Aralsk, Kazakhstan, but is no longer believed to be active and has not yet been located.

Tver

The Tver RCS range, formerly known as the Kalinin RCS range during the Soviet era, is located northwest of Moscow. This facility is interesting as it appears to be constructed to measure the RCS of objects suspended between two large gantries. The gantires are separated by approximately 400 meters, with the attachment point for the test object roughly halfway between them. Various exapmples of land-based radar systems are located at the western end of the large clearing housing the measurement range.

The Tver RCS range can be seen in the image below:
Voronezh

Voronezh in southwestern Russia houses a second RCS range facility. The Voronezh facility, previously identified in an Image of the Week, is similar to the northern facility at Tver insofar as it employes a large cleared area for radar propagation and a battery of land-based radars for signal generation. However, while Tver seems to be designed for measurement of suspended test articles, Voronezh appears designed for measurement of surface or pylon-mounted articles. The circular platform where test articles would be mounted also appears to contain a rotating central area, allowing for signatures to be measured at different aspect angles without having to completely reinstall the test article.

The Voronezh RCS range can be seen in the image below:
CHINA

China operates a large RCS measurement facility in Beijing. This facility is co-located with a test facility for numerous new radar systems, including the HT-233 guidance radar for the HQ-9 SAM system. This expertise potentially provides the RCS range with numerous qualified personnel to accurately measure test articles, as well as a facility for evaluating the performance of new radar systems. The test articles themselves may be mounted on a platform at the southern end of the radar pathway, or could theoretically be mounted underneath a crane located south of the measurement platform. An old MiG-15 airframe located near the crane platform may be employed as a calibration device for the radar range.

The Beijing RCS range can be seen in the image below:
BRAZIL

Brazil's Aeronautics and Space Institute in Sao Jose dos Campos operates a small outdoor RCS range. The range consists of a pylon for mounting targets of up to 2000 kilograms, and an adjustable radar array capable of being adjusted in both elevation and azimuth. The range is used to measure small objects, and to evaluate the effects of radar-absorbent materials.

Brazil's RCS range can be seen in the image below:
UNITED STATES UPDATE

The first feature detailing American RCS ranges and other classified test facilities was published in August of 2007. Since then, higher resolution imagery of two locations has been made available, and a new facility has been located.

New imagery of both the RATSCAT and Boardman RCS ranges can be seen below:

RATSCAT
BoardmanThe new facility is located near Walnut Springs, Texas, and is believed to be a former Lockheed Martin RCS measurement facility. The Walnut Springs RCS range consists of a retractable hangar for mounting test articles and two radar positions. A possible secondary facility may be located southeast of the main range.

The Walnut Springs RCS range can be seen in the image below:
ADDITIONAL DISCUSSION

Feel free to discuss the content of this article at the IMINT & Analysis Forum in the discussion thread found here. You must be a forum member to view the thread.

SOURCES

-Overhead imagery provided courtesy of Google Earth

Soviet Reactions to Stealth, SNIE 11-7/9-85/L, accessed via the CIA's FOIA site

SOLANGE and Japan
EADS Manching RCS Range
Brazilian RCS Range (.pdf file)

-All information contained in this article is sourced from the public domain, principally the World Wide Web, and is not intended to imply the dissemination of, nor does it contain, restricted or classified material.

Monday, October 26, 2009

SFRY Strategic Air Defense: A Cold War Case Study

INTRODUCTION

The Socialist Federal Republic of Yugoslavia (SFRY) existed throughout the Cold War, before succumbing to internal fractions and secessions. While not a Warsaw Pact member state, being a founding member of the Non-aligned Movement, the SFRY did rely on the USSR for the majority of its air defense weaponry. Strategic SAM defenses were no exception, but a lack of serious cooperation with the Soviets may ultimately have led to the creation of a less capable air defense network.

THE S-75

The first strategic SAM deployed in the SFRY was the S-75 (SA-2 GUIDELINE). Two air defense missile regiments (ADMRs), the 250th and 155th, were formed in 1962 and 1965 respectively. Each regiment defended the airspace around a key city, Belgrade for the 250th and Zagreb for the 155th, and consisted of four S-75 batteries. Heading into the 1970s the SFRY could count on a total of eight S-75 batteries for strategic air defense.

The 250th ADMR was equipped with the SA-75 Dvina. The missile system had a range of approximately 34 kilometers. The 250th ADMR's four sites were deployed in a roughly semicircular pattern south of Belgrade. The 155th ADMR, being established three years later, was equipped with a more capable, longer-range S-75 variant, the S-75M Volkhov. This system had an effective range of approximately 43 kilometers. Both systems were constrained, however, by their single-target engagement capability and simple command guidance methodology. In the mid-1960's, however, they were state of the art. The 155th ADMR's four batteries were arranged in a rectangular pattern, with Zagreb aligned along the right "side".

The following image depicts the layout and coverage zones of the 250th ADMR's SA-75 batteries:
The following image depicts the layout and coverage zones of the 155th ADMR's S-75M batteries:
The following image depicts the layout and coverage zones of SFRY strategic SAM assets, circa 1970. Note the larger engagement zones of the S-75M batteries.
THE S-125

In the 1970s, a new weapon system was added to the SFRY's strategic air defense network: the S-125M Neva-M (SA-3 GOA). The S-125M was a command-guided SAM system with a range of 25 kilometers. Like the S-75, it possessed a single-target engagement capability. It did enjoy better low-altitude capability than the S-75 variants, however, and was initially conveived in part to augment the S-75 for this very reason. The SFRY, however, initially chose to deploy the S-125M in a similar manner to the S-75: four-battery ADMRs would be established around important cities.

Two ADMRs were established to operate the S-125M, the 350th and 450th. The 350th ADMR was established in 1974 around Ljubljana in the northwest, with the 450th ADMR following in 1977 around Skopje in the south. The 155th and 250th ADMRs retained their earlier S-75 variants, the SFRY choosing, initially, to deploy the S-125s in undefended regions.

The following image depicts the layout and coverage zones of the 350th ADMR's S-125M batteries:
The following image depicts the layout and coverage zones of the 450th ADMR's S-125M batteries:
In 1978, a further four S-125M batteries were assigned to the 250th ADMR, which was redesignated the 250th air defense missile brigade (ADMB) to reflect its increased strength. These S-125M batteries were deployed around Belgrade and provided an increased coverage area as well as overlapping coverage zones with extant SA-75 batteries.

The following image depicts the layout and coverage zones of the 250th ADMB following S-125M deployment:
The following image depicts the layout and coverage zones of SFRY strategic SAM assets during the 1980s:
CAPABILITY

Being a non-aligned nation, neither part of NATO nor the Warsaw Pact, the SFRY was not committed to the air defense networks of either bloc. The SFRY was also a nation which contained a significant amount of varied terrain. These factors helped shape the general layout of strategic SAM deployments.

Given that the SFRY was not permanently joined to one side of the Iron Curtain, its strategic SAM network allows for interesting comparisons to be made between "aligned" and "neutral" nations. Unlike the DDR, for example, the SFRY's strategic SAM network was relatively sparse, designed only to defend key areas rather than provide true nationwide or border area air defense. Nationwide or border deployment strategies would have been hampered by the aforementioned terrain constraints, particularly in the areas of present-day Bosnia Herzegovina, Kosovo, Macedonia, and Montenegro. Non-Warsaw Pact member status may have also prevented the SFRY from obtaining long-range systems such as the S-200 (SA-5 GAMMON), or hosting similarly-equipped Soviet units. Alternatively, as a non-aligned nation, the SFRY may have seen the deployment of such a network or the purchase of more advanced assets as unnecessary.

Ultimately, the SFRY's strategic SAM network was fairly porous, and in later years suffered from reliance on 1960s-era technological assets. While the network fulfilled the requirement for air defense of key locations, it would not have provided a significant impediment to a modern, equipped air force, especially during the 1980s when the effectiveness of the S-75 and S-125 had been reduced to a significant degree by Western electronic warfare systems and system exploitation.

BREAKUP

In the 1990s the SFRY began its gradual disintegration into the various nation-states and autonomous provinces which exist today. As the nation degraded, so did the air defense network once emplaced to defend it. The 155th and 350th ADMRs were relocated to Bosnia in 1992, with the S-125M batteries being used to replace the SA-75 batteries in the 250th ADMR. The 155th ADMR was deactivated in accordance with the 1995 Dayton Accords, leaving the S-125M the only remaining strategic SAM asset operational in any former Yugoslavian state. At some point between 1990 and 1999, the 450th ADMR was relocated to Bosnia and emplaced near Kraljevo. Only one prepared site has been located in the area, seen in the image below, suggesting that the remaining batteries may have been kept in reserve and subsequently field deployed during the 1999 conflict with NATO.
Due to reliance on largely outdated systems and operating only twelve S-125M batteries, it is no suprise that the 250th ADMB and 450th ADMR failed to achieve great success in repelling NATO air attacks in 1995 and 1999. Many of the same nations, flying the same warplanes, had enjoyed great success over Iraq in 1991, which operated significantly more S-75 and S-125 batteries. The only NATO warplane shot down in 1995 was a French Mirage 2000, and this was downed not by an S-125M but by a shoulder-fired SAM system. 1999 saw marginally more success statistically, likely related to the increased number of sorties which were mounted by NATO.

F-117 DOWN

The 250th ADMB would reach the end of the 1999 conflict with a significant victory for any air defense unit, regardless of strength or sophistication: the shootdown of an F-117A. On the 27th of March, 1999, an F-117A was shot down by an S-125M unit commanded by Colonel Zoltan Dani. Col. Dani has stated that the missile system was modified, although he has not provided any details which could compromise such systems still in service in Serbia, and has discussed communications intercepts which provided insights into flight routes. The most likely explanation is that a long wavelength radar system was incorporated allowing the F-117A to be tracked at greater-than-normal range for the system, allowing ingress and egress routes to be studied. An S-125M battery deployed underneath a known ingress/egress corridor would have an excellent chance of tracking an F-117A, as the aircraft is not, after all, invisible. By masking such a deployment from NATO reconnaissance assets, the S-125M battery would be able to engage and shoot down an F-117A.

Given that there were no other LO aircraft shot down, despite persistent propaganda claims of B-2 shootdowns to the contrary, this would appear to be a credible scenario, as the likely NATO response of altering future flight routings would alleviate the possibility of a SAM battery being purposely deployed underneath a known route. Again, while Serbian air defense units did not ultimately prevent NATO aircraft from conducting their bombing raids, and therefore failed to achieve their strategic purpose, on a single night in 1999 the 250th ADMB demonstrated to the world that with proper support, competent tactics, and effective training, a less technologically advanced system can still be an effective part of a strategic air defense network.

As a side note, the F-117A shootdown likely resulted in the second most famous event of the 1999 conflict-the bombing of the Chinese embassy on 7 May. While various sources have claimed that the building was bombed due to signals intelligence information, alleging that China was studying cruise missile systems to develop effective countermeasures, this story makes as much sense as the official response that the site was hit due to an error caused by outdated maps. By 1999 China was well into developing the HQ-9, and had imported various iterations of the S-300P (SA-10 GRUMBLE/SA-20 GARGOYLE) and Tor (SA-15 GAUNTLET) SAM systems, providing viable cruise missile defense. It is more likely that the site was deliberately bombed to prevent the transfer of F-117A airframe and RAM components to the Chinese.

CONCLUSION

The SFRY did not take an consistently belligerent stance on one side of the Iron Curtain or the other, and as a result was not ultimately under a constant and serious threat from either NATO or the Warsaw Pact. Given the political considerations, it is not suprising that a more robust and capable strategic SAM network failed to materialize. The SFRY simply deployed what it felt was necessary to achieve its goals, and the failings of the network's remnants in the 1990s were simply a result of oversaturation and undermodernization of the remaining weapon systems themselves.

ADDITIONAL DISCUSSION

Feel free to discuss the content of this article at the IMINT & Analysis Forum in the discussion thread found here.

SOURCES

-Satellite imagery provided courtesy of Google Earth

Jane's Land-based Air Defence, various editions

Zoltan Dani on the F-117A shootdown

Special thanks to IMINT & Analysis forum member Hpasp for providing SFRY order of battle information and historical data.

Saturday, January 5, 2008

US Restricted and Classified Test Sites

INTRODUCTION

The widespread availability of open-source overhead imagery thanks to applications like Google Earth and NASA World Wind has provided the public with the chance to view many restricted and classified test locations within the United States. While details of the test programs associated with some of these facilities are obviously not going to be discernable, the availability of open-source imagery nevertheless allows individuals to view sensitive facilities that normally would be hidden by terrain, and sometimes heavy security.

This article is not intended to be an all-inclusive list of classified test facilities, nor an in-depth examination of Area 51, but rather an overview of some of the most significant and interesting test sites in the country.

RCS RANGES

Some of the most significant defense-related facilities in the United States are Radar Cross Section (RCS) test ranges. These facilities, being either contractor or government operated, conduct some of the most sensitive test programs in the defense industry. RCS ranges are used to test the radar signatures of various objects, most significantly with the aim of measuring their ability to evade radar detection against various radar types. Stealth platforms like the HAVE BLUE were tested at an RCS range in order to validate the design before flight testing, for example, to ensure that the RCS of the aircraft would meet the requirements of the test program. Due to the sensitive nature of the testing conducted at these facilities, they are typically located in isolated areas.

The primary outdoor RCS test ranges can be located at the following coordinates:

Boardman: 45°44'53.55"N 119°47'10.02"W
Grey Butte: 34°34'13.01"N 117°40'11.27"W
Helendale: 34°49'30.40"N 117°17'45.83"W
Junction Ranch: 36°02'15.81"N 117°30'10.69"W
Kirtland AFB: 34°57'33.77"N 106°29'59.27"W
RATSCAT: 33°10'59.71"N 106°34'23.81"W
Tejon: 34°55'27.49"N 118°31'44.76"W

The following image depicts the relative locations of the various outdoor RCS test ranges listed above:


Boardman

Located in an isolated area west of Boardman, Oregon, the Boardman RCS range is owned and operated by Boeing. The facility consists of a radar array at the west end and a pylon for mounting test articles at the east end. The pylon can be covered by a large, moveable hangar, to protect sensitive test objects from view. When RCS testing is ongoing, the hangar slides out of the field of view of the radar sensors on a set of rails. The sliding shelter concept is similar to what was used at the former Grey Butte RCS test range.

The following image depicts the Boeing Boardman RCS test range:


Grey Butte

The former Grey Butte RCS test range is located 25 miles south by southeast of Edwards AFB in California. The Grey Butte facility was operated by McDonnell Douglas in the past, before being acquired by Boeing when the two companies merged. In 1999 the facility was closed down, being sold to General Atomics, who currently uses the facility to conduct UAV research. The former RCS test range consisted of a primary antenna array at the west end, with various target positions scattered around the range. The primary RCS test article position was directly east of the antenna array, and was hidden by a retractable hangar, which may have inspired Boeing to use a similar system at their Boardman facility.

The Grey Butte facility is interesting insofar as the location of the aforementioned retractable hangar is concerned. At the Boardman facility, the hangar retracts southeast to place the structure outside the field of view of the radar being used to measure the test article's signature. In the Grey Butte facility, the hangar retracted directly aft of the test article's location. This is interesting because it would seem to indicate that the hangar was still within the field of view of the radar arrays targeting the test article. There are two possible explanations for this apparent discrepancy. First, radar sets with a very narrow beamwidth may have been employed. This would have allowed them to target the RCS test article, with any extraneous radar energy simply passing it by and travelling straight through the open hangar bay. The second possibility is more abstract, and far less likely, although it does raise some interesting questions. It is known that the Russian defense industry has been experimenting with ionized plasma as an RCS-reduction method. A similar system (or some other RCS-reduction method) could, in theory, have been employed at Grey Butte to hide the hangar structure.

The following annotated image depicts the former Grey Butte RCS test range:


Helendale

Lockheed Martin's Helendale RCS test range, situated 32 miles east by southeast of Edwards AFB, is one of the most storied RCS test ranges in the country. The range area consists of an antenna array at the southern end, with two secondary target positions situated 425 meters and 1520 meters downrange. The primary test article facility is a large structure situated 2300 meters from the radar array. This is a large, underground complex, with a sliding roof hiding the retractable primary test pylon. A mobile radar antenna is also present, which moves off to the west when not in use to allow the radar sensors to the south a clear field of view to measure the primary test article.

The following annotated image depicts Lockheed-Martin's Helendale RCS test range:


Tejon

The Tejon RCS test range is owned and operated by Northrop-Grumman (previously Northrop, before the merger). Located 35 miles west of Edwards AFB, the Tejon RCS range consists of two separate, co-located facilities. The older, larger north complex features an antenna array and four target positions, while the newer south complex features two separate antenna-target combinations.

The following annotated image depicts Northrop-Grumman's Tejon RCS test range:


Not all RCS test ranges are operated by private contractors. The US DoD operates three outdoor RCS test ranges in California and New Mexico.

Junction Ranch

The Junction Ranch RCS test range is operated by the US Navy. It is situated on the massive China Lake range complex, located 27 miles north by northeast of China Lake NWC.

The following annotated image provides an overview of the USN's Junction Ranch RCS test range:


Being a US Navy complex, the Junction Ranch RCS range has a few unique features. Firstly, there are two separate test sites. The "dry" site is a conventional RCS test range employing a radar array and pole-mounted test objects.

The following annotated image depicts the "dry" RCS test range at Junction Ranch:


The second range is unique in that it is a "wet" facility, designed to test replicas of seagoing objects which are mounted in a water pool. Three miles to the southeast a radar facility is located atop the surrounding mountains to enable RCS testing of objects placed in the pool. Both of these locations are depicted in the overview image above.

RATSCAT

The RATSCAT Advanced Measurement System (RAMS) site is located 35 miles northwest of Holloman AFB, New Mexico. RAMS represents the most advanced low-RCS test range in the country, and as such is isolated in the White Sands Missile Range. Holloman AFB is also home to various other RCS test facilities operating under the direction of the National RCS Test Facility, with the capability to measure both pole models and in-flight models or aircraft.

The following image depicts the RATSCAT Advanced Measurement System site:


Kirtland AFB

Kirtland AFB in Albuquerqe, New Mexico is also the home to an unidentified RCS test facility. Some sources indicate that the facility may be associated with the Sandia National Laboratory, which also operates some facilities on the Kirtland range.

The following image depicts the RCS test range located on the Kirtland AFB range:


There are two other significant outdoor RCS facilities visible in the United States. They are associated with one of the most secretive military installations on the planet.

AREA 51

Area 51, also known as Groom Lake, Watertown Strip, Dreamland, or The Ranch, is one of the US government's most highly classified test facilities. The activities which take place at Area 51 are some of the military's most sensitive test programs, and have included the flight testing of the U-2, the A-12, and the HAVE BLUE stealth technology demonstrator.

The following image provides an overview of the expansive Area 51 complex:


Area 51 is home to some unique structures, both historical and current. The original AQUATONE and OXCART hangars can still be seen, with the OXCART hangars likely having served as the home to the RED HAT aircraft. The 24,000 foot runway, the longest in the world, is still present as well, but this is believed to no logner be operational, as denoted by the X markings on the northern end and the fact that the new runway uses the same numbers.

The following annotated image depicts some of the most interesting and significant facilities located at Area 51:


Various test facilities are located at Area 51. The location where the A-12 was pole-mounted for RCS testing can still be seen adjacent to the lakebed's western edge. The DYCOMS radar sensor system can also be seen. DYCOMS is an airborne RCS test system used to evaluate the radar signatures of aircraft which overfly the facility.

The following annotated image depicts Area 51's DYCOMS RCS test facility:


A facility which has been referred to as the QUICK KILL radar site is also present adjacent to the DYCOMS facility. The terminology may indicate that this is an electromagnetic weapon of some sort, designed to disable electronic systems.

Area 51 is not the only significant test site in the Nevada Desert. Some of them, by nature, may even be more secretive.

TONOPAH ELECTRONIC COMBAT RANGE

Located near Tonopah Test Range, the former home of the then-classified SENIOR TREND fleet, is an expansive complex housing what may be some of the most secretive items in the United States. A vast electronic combat range containing numerous radar systems is home to more than a few examples of Soviet and Russian radar systems. While their presence may be an open secret, as it has been stated in the past that the OXCART was tested against Soviet radar systems, the means of their acquisition is understandably highly classified. One can speculate that some systems may have been sourced from cash-strapped former Soviet republics, in the same manner that Moldova's MiG-29 fleet was acquired.

The following annotated image provides an overview of the most prominent features of the Tonopah Electronic Combat Range:


Not all of the radar systems present at the Tonopah site can be identified, due to the resolution of the imagery, and some of them may not even be radar systems at all. However, some of the radars are readily identifiable due to their large size. Situated around what appears to be the primary facility are four raised berms, each appearing to house a radar system. The northern and eastern berms are home to Soviet-era P-35 (BAR LOCK) E/F band EW radars. Just south of the main facility is another pad which appears to house an RSN-125 (LOW BLOW) engagement radar associated with the S-125 (SA-3 GOA) SAM system.

The following annotated image depicts the main test area at the Tonopah Electronic Combat Range:


TOLICHA PEAK ELECTRONIC COMBAT RANGE

The radar range near Tonopah is not the only electronic combat facility in the Nevada desert. At 37°18'58.48"N 116°46'50.93"W the Tolicha Peak Electronic Combat Range can be found.

The following annotated image provides an overview of the most prominent features of the Tolicha Peak Electronic Combat Range:


The mainstream belief is that the Tolicha Peak facility houses numerous radar systems to support RED FLAG operations, given its proximity to two mock airfields. A more detailed examination provides an alternative, that of foreign SAM system exploitation and testing. Elements of S-125 (SA-3 GOA), S-200 (SA-5 GAMMON), and S-300PS (SA-10B GRUMBLE) SAM systems can be found on the grounds of Tolicha Peak.

The following annotated image depicts what is likely an S-125 facility at Tolicha Peak. The object to the west of the RSN-125 (LOW BLOW) radar system would appear to be some sort of three-round launcher, or an unusual radar system, and does not resemble the 5P71 or 5P73 launchers found at operational S-125 sites around the globe, and as such may be some sort of dedicated test equipment.


The following annotated image depicts an S-200 launch site at Tolicha Peak. There would appear to be a second missile, albeit with the control surfaces removed, nearby. The 5N62 (SQUARE PAIR) engagement radar is not colocated with the launch facility and was not readily identified, but the facility 0.47 kilometers to the southwest is a candidate.


The most interesting facility found at Tolicha Peak is the S-300P launch site. It would appear that a nearly complete collection of radars is present, as well as two TELs and a 40V6 mast assembly. The 40V6 is used to mount either the 5N63S (FLAP LID) engagement radar or the 76N6 (CLAM SHELL) low altitude detection radar on a 23.8 meter mast to provide better performance in areas with varied terrain or vegetation. The shadow cast by the southern 5P85 TEL seems to indicate that it is a 5P85S, complete with the control compartment for controlling the adjacent 5P85D TEL. The vehicle which is most likely the 5N63S engagement radar vehicle appears to have the radar array lowered in the travel configuration. Given the presence of the mobile TELs and the mobile 5N63S radar, the system present here is likely either an S-300PS or export-standard S-300PMU.

The following annotated image depicts the Tolicha Peak S-300PS facility:


Close examination of the terrain in the vicinity of the Tolicha Peak Electronic Combat Range would seem to display impact craters, providing further evidence that actual SAM firings may be taking place here. As the United States does not actively list any of the aforementioned SAM systems in its operational inventory, it is likely that some sort of test work does take place here. It is also possible that the associated radar systems are in fact also used against aircraft flying on the Nellis AFB Range to provide more realistic electronic combat training.

JACKASS FLATS

Jackass Flats is situated 45 miles southeast of the Tolicha Peak Electronic Combat Range, and was the home to some of the most interesting experimental programs to be conducted in the Nevada desert.

Pluto

Located on the eastern portion of Jackass Flats is the remains of one of the most interesting and potentially catastrophically dangerous weapons programs of the Cold War. Project Pluto was intended to culminate with the development of a nuclear powered cruise missile. A facility was constructed to test conceptual nuclear engine designs for Project Pluto. The vast facility consisted of three main areas. Firstly, there was a reactor assembly building where the Tory-series reactors were constructed and then disassembled for analysis post-firing. Secondly, there was a separate reactor test facility situated 2 miles from the assembly facility, where the test firings would occur. Lastly, there was a complex consisting of 25 miles of piping designed to provide the compressed air necessary for testing the reactor, as it was intended to operate as a ramjet and could not function with still air. Current imagery indicates that the piping has since been removed, but the structures remain, as does the railway which used an automated railcar to transport the test articles between the two facilities.

The following annotated image depicts the Project Pluto facilities at Jackass Flats:


HENRE

Jackass Flats was home to a second nuclear-related test. The High Energy Neutron Reaction Experiment (HENRE) program used a linear accelerator to provide neutrons which would be used in a radiation measurement test program. The 1,527 foot tower used in the HENRE program was previously a resident of the Yucca Flat test area, and was employed in the BREN program. It was relocated to Jackass Flats to support the HENRE program in 1966.

The following image depicts the HENRE test tower at Jackass Flats:


NRDS

The Nuclear Rocket Development Site (NRDS) at Jackass Flats was used to test nuclear rocket engines under the auspices of various test programs. The facility consisted of numerous structures, including the Reactor Maintenance, Assembly, and Disassembly (R-MAD) and Engine Maintenance, Assembly, and Disassembly (E-MAD) stations. There were three test stands, Test Cell A, Test Cell C, and Engine Test Stand 1 (ETS-1). Rocket engines, much like those tested at the Pluto facility, were transported using an automated rail system.

The following annotated image provides an overview of the NRDS:


Test Cell A was the location for the Kiwi-TNT destructive test which consisted of the obliteration of a nuclear rocket engine to simulate a potential accident during launch of a nuclear-powered rocket.

The following annotated image depicts one of the engine transportation railcars remaining at the E-MAD facility:


SOURCES

Radar Ranges of the Mojave
Gray Butte Radar Cross-Section Facility
Building Map of Area 51
RCS Ranges
The HENRE Program
Project Pluto
The NRDS (PDF file)
More on the NRDS (PDF file)

-All overhead imagery provided courtesy of Google Earth, Microsoft Virtual Earth, and NASA World Wind. USGS imagery was provided by the latter two sources.

-All information contained in this article is sourced from the public domain, principally the World Wide Web, and is not intended to imply the dissemination of, nor does it contain, restricted or classified material.

-For more information on NASA's World Wind application, reference the following: LINK

Saturday, June 16, 2007

Russian Strategic Defense - Part 3, The Future

INTRODUCTION

Part 3 of this series focuses on future developments in the field of Russian Strategic Defense. The previous two entries are still available:

Part 1: The S-300P
Part 2: The ABM Network

THE S-400

The next generation SAM system being trialled by the Russian military is the Almaz-Antey S-400 Trieumf (Triumph; SA-X-21). The S-400 represents the latest iteration of the S-300P SAM system. The S-400 may have originally been designated S-300PM-3 due to the relationship with the older system. The 48N6DM used by the S-400 is a derivative of the S-300PM-2's 48N6D missile, and the S-400 will be able to employ the 9M96 series of SAMs as well. The largest changes to the S-400 when compared to the more dated S-300P variants are the inclusion of the new GRAVE STONE target engagement radar, and the inclusion of the new 40N6 400 kilometer range missile. GRAVE STONE is said to give the S-400 an anti-stealth capability. With the 40N6, 48N6DM, and 9M96, the S-400 will represent a very capable SAM system able to engage a variety of targets at various ranges.

The S-400 is due to enter operational service in the summer of 2007, with the first battery being employed near Elektrostal, outside of Moscow as part of the capital city's SAM defense network. Work on the 40N6 missile is still progressing, and this weapon is to be incorporated into the S-400 batteries as early as 2008. Until then, the S-400 will remain little more than yet another incremental upgrade to the S-300P family.

SAMODERZHETS

Later versions of the S-400 system will most likely be of the Samoderzhets family. With the merger of Almaz and Antey a few years ago, a whole wealth of SAM experience was merged, and Samoderzhets will be the first hardware example of that merger. Samoderzhets will be an S-400 system incorporating a towed TEL carrying two 9M82M (SA-X-23 GIANT) ATBMs. This will provide a far more robust ATBM capability for an S-400 battery, and potentially increase the export value of the system as well.

OTHER SAM DEVELOPMENTS

There are two other SAM systems under development for future use, the S-500 and the S-1000. The S-500 has been described as an S-300P follow-on system. The S-500 will likely not enter development for some time, and will represent the next generation of Russian SAM systems, perhaps finally breaking out of the S-300P family's mold. The S-1000 has been described as a follow-on to the S-300V system. The S-1000 may enter development earlier than the S-500, as there is no "S-400 equivalent" being pursued for the Russian S-300V systems. The Antey-2500 and Antey-2500D appear targeted at the export market only, and the upgraded S-300VM and S-300VM-1 appear to be non-starters for domestic use as well, although their technology and 9M82M/M1 missiles may filter down to the Samoderzhets system. In reality, the S-1000 may represent a THAAD-style system, or with the merger of Almaz and Antey the S-500 and S-1000 may be replaced by a single system useable for both roles, along the lines of Samdoerzhets.

ABM DEVELOPMENTS

Much less work appears to be underway on the ABM front. There have been rumors of a new ABM interceptor being developed, desugnated 45T6, but nothing more is known about this system. It would logically be a replacement for the Fakel 51T6 exoatmospheric interceptors, as these have recently been taken out of service.

Most of the ABM work underway is in the radar field. The aforementioned Voronezh-DM radar (see Part 2) is the latest BMEW LPAR design, and is currently under construction at two sites.

Beyond that, very little work appears to be underway regarding future ABM components. Sary Shagan is still an actively-used ABM test range, as evidenced by a recent 53T6 test launch, but there does not appear to be any significant R&D activity ongoing. That could be due to the existance of the test range outside Russian territory; ABM development may be moved to Kapustin Yar, Ashuluk, or another test range in the future to keep it "in house".

THE FUTURE

What is the future of the Russian strategic defense network? With an active, operational ABM system, and a robust SAM network, the future may not be as important as the present. That is to say that money may be better spent upgrading current systems and keeping them viable for the next 10-15 years, before beginning development on the next generation of strategic defense systems.

SOURCE MATERIAL

The following sources were consulted in the preparation of this report:

Globalsecurity's Russian BMD page
Pavel Podvig's blog
Russian language website on ABM systems
ABM and Space Defense
1999 US Senate Hearings on ABMs and Missile Defense

Jane's Strategic Weapons Systems (various years)
Jane's Land-based Air Defence (various years)
Fakel's Missiles (Moscow, 2003)

Various posters at Secret Projects, in particular Overscan, Meteorit, and Muxel, provided a good debate about the topic and provided the inspiration for this project. Thanks also to Trident for the Lake Balkhash thing!

All overhead imagery is provided courtesy of Google Earth.

Friday, May 4, 2007

Fire From Space

INTRODUCTION
One of the most prominent missions of the United States Air Force (USAF) is that of strike. At any time, theater commanders can order USAF fighter jets to hit targets with uncanny precision. However, with continued advances in air defense technology, the skies over hostile nations are becoming increasingly more dangerous. The answer is to remove the skies from the equation completely: it’s time for the USAF to embrace space.

SPACE SYSTEMS VS AIRBORNE SYSTEMS
One of the major development and procurement efforts currently being considered by the USAF will result in a new long-range strike aircraft. The current fleet of B-52H, B-1B, and B-2A strategic bombers will need to be replaced around 2040.[1] The USAF is also considering a shorter-ranged, theater strike aircraft to be available around 2015. Apparently, the current focus in this regard is a derivative of the Lockheed F-22A, known as the FB-22.[2] Under the banner of “Prompt Global Strike,” the USAF is currently conducting a two-year study to outline a future strike system capable of striking targets anywhere in the globe in a matter of minutes. Such a system, if procured, is expected to be available in the 2012 to 2015 timeframe.[3]

The problem the USAF will face in coming months is one of funding. It is illogical to assume that Congress will authorize funding for three independent programs, especially given the fact that at least two of those programs, the new strategic bomber and the “Prompt Global Strike” program, seem to have similar goals in mind and as a result offer similar capabilities. The USAF wants a quick-reaction strike capability, both over intermediate and global ranges. The USAF will need a new strategic bomber. By combining the strategic bomber requirement, the intermediate strike aircraft requirement, and the quick-strike program, the USAF will be in a position to maximize its resources and minimize the costs involved, and will finally obtain a truly transformational and revolutionary weapon system.

FINDING THE ANSWER
There are a number of concepts which could provide the USAF with the quick-strike capability it desires in the near future. The first of these is a simple modification of current intercontinental ballistic missiles (ICBMs), and possibly submarine-launched ballistic missiles (SLBMs), with conventional warheads. The conventional ICBM system offers a global strike capability with a minimum of development work at a minimum cost. A conventional ICBM could be in service in a short amount of time, using modified versions of existing systems. One such proposal is the Minotaur III. Minotaur III would employ components from deactivated Peacekeeper ICBMs in concert with a new third stage designed to deploy conventional weapons.[4]

The main argument against a conventional ICBM system is political. How will conventional ICBM launches be differentiated from their nuclear-tipped brethren? Such a differentiation must be made in order to assure other nuclear powers that the United States is not in the process of launching nuclear weapons. Minotaur III answers this question by employing a unique launch signature which will be detectable by launch detection systems. Also, Minotaur III will not be silo-based, negating the need for basing conventional ICBMs at current nuclear launch facilities.[5]

The conventional ICBM system is not without problems. First, there is the issue of accuracy. ICBMs are designed as nuclear delivery systems. Simply mating a conventional warhead to an ICBM would not provide pinpoint accuracy; ICBMs are not designed to provide such a degree of accuracy as such accuracy levels are not necessary when delivering a nuclear warhead. Second, once an ICBM is launched, it cannot be recalled without complete loss of the system by remote detonation. Conventional strike aircraft hold an advantage in this regard: if intelligence changes or is found to be in error, a mission can be cancelled without loss of a multi-million dollar strike aircraft.

Another concept which could provide the required strike capability is a subsonic platform capable of employing weapons or armed unmanned combat aerial vehicles (UCAVs). One such concept involves a Boeing 747, equipped with the facilities to launch and recover both an F-22A (mounted dorsally) and a UCAV (mounted under the fuselage).[6] On the surface, the 747 concept seems to be cost-effective: existing 747s and F-22As would merely need to be modified, and UCAVs are comparatively cheap systems to develop and procure. Such a proposal would certainly be ambitious and seem to offer a good deal of capability, but is not necessarily the right answer. A subsonic platform would require refueling support, basing, and would not provide the quick-reaction capability desired by the USAF, necessitating the development and procurement of a second system to satisfy that requirement.

A third concept to be considered for a future strikes system is an armed orbital satellite. Logistically and politically, this presents the least feasible option. While a satellite could easily be configured to deploy a weapon, it comes with a myriad of logistical issues. First and foremost, satellites are not unlimited resources. They must be maintained and fueled, and in this case rearmed. Those factors necessitate the presence of an orbital system capable of mating with these weaponized satellites. Such a system is not currently available on a consistent basis, as the Space Shuttle program is currently struggling with technical issues. Furthermore, if a new orbital system is to be developed to service these satellites, then it would seem more logical to arm the orbiter rather than the satellites! Launch systems would also be required to place these satellites into orbit.

From a political standpoint, armed satellites present two major problems. First, to be most effective, a satellite should be locked into a geostationary orbit over a potentially hostile nation. This would help to alleviate the need for refueling maneuvering systems, but does mean that the satellite is not available to cover other areas without maneuvering and using valuable fuel. The political argument against such an action would be that orbiting a weapon directly over a nation is an overtly hostile action. Such an action would likely be attacked as an example of the aggressiveness of the United States; a nation with an armed satellite positioned directly over its capital could argue that it is being convicted without a trial, as it has not (yet) acted in a hostile manner.

Second, there is the issue of a technical problem occurring and an armed satellite crashing into a populated area. While the satellite itself would likely burn up upon reentry, the weapons themselves would likely survive reentry and fall to Earth as that is, after all, their designed function. The United States would be the target of severe backlash if the weapons impacted in a friendly nation, and could find itself in the middle of an unwanted war if the weapons impact in a neutral or potentially hostile nation state’s territory.

A fourth concept capable of meeting the goals of quick response and global strike is an aerospace craft. Such a craft would be capable of launching and recovering from the CONUS. When considering such an aerospace craft, the question that must be answered is one of system characteristics: is the answer a single-stage-to-orbit (SSTO) or two-stage-to-orbit (TSTO) craft?

From a technical standpoint, a SSTO platform offers fewer risks. A TSTO platform must achieve a clean separation; launching aircraft at the comparatively benign speed of Mach 3 was proven to be troublesome in the 1960’s during the CIA’s TAGBOARD program and has not been attempted since.[7] The TAGBOARD program utilized two specially modified OXCART reconnaissance aircraft to deploy D-21 drones for reconnaissance sorties.[8] Three clean separations were achieved before a failed fourth attempt resulted in the cancellation of the program after the loss of the M-21 launch aircraft, the D-21 drone, and the life of Launch Control Officer (LCO) Ray Torick.[9]

TSTO craft also present financial and developmental concerns. A TSTO craft requires two components, and both components must be funded, developed, and procured. If one component is found to be lacking during development, then the entire program must be put on hold while a suitable alternative can be developed. Support equipment for both craft must also be developed and procured. The size of the orbital component of the TSTO craft is dictated by the carriage capability (or throw weight, if a conventional space launch vehicle is used) of the launch system. A SSTO craft can be considerably larger than a TSTO craft’s orbital stage, and as such would prove to be more useful as it would possess a larger payload capacity. Insofar as aerospace craft are concerned, the more attractive option is clearly that of a SSTO craft.

The concept of an orbital strike aircraft is not new, and is certainly not a concept conceived in the 21st Century. Indeed, the concept of an orbital strike aircraft even predates supersonic flight. The first orbital strike aircraft concept was under development in Nazi Germany during the Second World War.

In the early 1930’s, Austrian-born scientist Dr. Eugen Sänger began studying a rocket powered commercial transport capable of speeds of up to 29,000 kilometers per hour. Dr. Sänger was one of the first “rocket scientists” in the world, and his 1933 book titled Raketenflugtechnik (translated as “The Technique of Rocket Flight”) is widely regarded as the first practical text covering rocket-powered flight.[10] Dr. Sänger conducted private research throughout the 1930s until he found work with a rocket research firm in 1936, the Hermann Göring Institute in Germany.[11]

When World War II broke out, Sänger’s attention turned to a military strike version of his rocket powered transport in order to guarantee continued funding of his research efforts. Sänger’s rocket bomber would achieve global range by “skipping” off of the Earth’s atmosphere rather than reentering.[12] While Sänger’s proposal was never destined to reach the hardware stage in Nazi Germany, it was sufficiently enticing to Soviet intelligence agents that in 1946 Josef Stalin’s son Vasilli offered to pay an informant their weight in gold if they could disclose the post-war whereabouts of Dr. Sänger![13]

The USAF is certainly no stranger to the concept of a space based weapon system. In the 1950’s, the USAF conducted studies of its own orbital strike aircraft. Project ROBO was a study for a bomber based on the work of Dr. Sänger.[14] Under the auspices of the X-20 program, an armed variant known as the X-20B was studied.[15] The X-20 was even considered for the anti-satellite mission in an unarmed state: satellites would not be destroyed, but rather their trajectories would be altered by impact.[16] Unfortunately, the X-20 program as a whole was cancelled before it reached the hardware stage, so the USAF never got the chance to experiment with an armed aerospace plane.[17]

There have been persistent rumors that the USAF may already have tested a highly classified TSTO system from the flight test facility at Groom Lake, Nevada. Current reports seem to indicate that the system, apparently codenamed Blackstar, may have recently been mothballed, possibly due to an unresolved technical issue.[18] If that is indeed the case, it would potentially represent a further case in the argument for a SSTO system. Furthermore, any such program, if the classification level is downgraded sufficiently, may well provide a valid jumping-off point for the development of a SSTO craft. At the very least a plethora of technical data could be made available to designers.

In addition to the aforementioned attempts to capitalize on Dr. Sänger’s research, it should be noted that Russia has been working on military aerospace craft of its own. OKB Tupolev had studied various concepts since the late 1960s. Their current project in this field is known as the Tu-2000. OKB Tupolev envisions the Tu-2000 as a SSTO orbital craft.[19]

In the 1950s and 1960s Vladimir Chelomei, working in concert with OKB Myasischev, designed an orbital aerospace plane intended for use as an anti-satellite system. The craft, dubbed “Rakatoplan,” was a small two-man reusable spacecraft. A March1963 test launch of an unmanned test vehicle reached an altitude of over 600 miles, but the system was cancelled in May of 1964 before it ever became operational.[20]

OKB MiG conducted its own research on aerospace craft in the 1960s and 1970s. Under the Spiral project, OKB MiG researched a TSTO aerospace craft consisting of a Mach 7 carrier aircraft and an orbital vehicle carried on its back. The only facet of this now-defunct program to reach the hardware stage was the 105-11 demonstrator. The 105-11 was a subsonic, jet-powered atmospheric test vehicle designed to test handling characteristics of the Spiral’s orbital craft. After a brief flight test program, the project was shelved. Data gathered while flight testing the 105-11 eventually paved the way for the Buran program.[21]

SSTO STRIKE
Clearly, the most logical answer to the USAF’s future strike needs is a space based weapon system in the form of a SSTO aerospace craft. A space based weapon system will offer many significant advantages over current in-service strike systems. The first, and perhaps most significant, is one of location. An aerospace craft will possess global range and quick-reaction capability. Given the nature of the system, it will be able to launch and recover from bases within the continental United States (CONUS). This will present both significant logistical and political benefits.

Logistically, CONUS-based weapon systems are cheaper to operate when compared to forward-based weapon systems. Consider the case of the Northrop B-2A, the USAF’s much-vaunted “stealth bomber.” In March of 1999 the B-2A undertook its first combat missions over Yugoslavia as part of Operation ALLIED FORCE. B-2As of the 509th Bomb Wing at Whiteman Air Force Base (AFB), Missouri, flew 30-hour round-trip sorties to Yugoslavia and back.[22] This was a very impressive demonstration of the USAF’s global strike capability.[23] Logistically speaking, this was a very cost-effective move.

Consider the benefits of employing the B-2A from the CONUS. First, the USAF saved the money which would have been spent forward deploying the B-2A, the required ground service equipment, and the personnel required to operate and maintain the aircraft. Second, the aircraft was kept in a secure environment. Third, money was saved which would have been paid to deployed personnel in various allowances as a consequence of being deployed away from their home station. All of these savings would also apply to an aerospace craft deployed from the CONUS.

A further logistic benefit to a CONUS based aerospace craft is the lack of support aircraft needed to conduct operations. During a typical USAF operation, there are many support aircraft involved, ranging from in-flight refueling aircraft like the KC-135R, to fighter escorts like the F-15C. Removing the need for these support aircraft will result in a substantial reduction in overall operating costs required to perform a given strike. Eliminating the need for in-flight refueling alone will result in substantial savings; the average cost of transferring 10,000 gallons of jet fuel is nearly $200,000.[24] Furthermore, the costs of deploying aircraft and personnel to forward bases would also be considerably slashed, as far fewer aircraft would need to be deployed to any given combat theater.

There are numerous political benefits to having strike aircraft based in the CONUS. First and foremost, basing privileges do not need to be negotiated with friendly states in close proximity to the desired theater of operations. Secondly, overflight clearances do not need to be negotiated. This would aid in keeping the element of surprise on the side of the USAF: there is no guarantee that a nation which grants US combat aircraft an overflight clearance en route to a combat zone will not notify the targeted nation state that an air strike is incoming.

Any space based weapon system will confer a significant advantage on the USAF’s strike capability in terms of reaction time. A weapon with the speed of an ICBM will need 30 minutes to an hour to reach any target on the globe from the CONUS. The advantage here is clear. An aerospace craft could launch from the CONUS, acting on real-time intelligence data, and strike a priority target in minutes. This would enable the United States government to deal much more decisively with hostile nation states. Rather than needing to wait for forces to be deployed in-theater, strikes could commence virtually immediately at the outset of hostilities, perhaps catching certain sensitive targets before they can be relocated or adequately defended against a conventional air strike.

Any space based weapon system will enjoy virtual immunity from attack, being able to perform its’ mission without interference. This will further decrease the reliance on support assets. This will also remove any doubt from the minds of foreign leaders regarding their ability to defend against an air strike launched by the United States, enabling the United States government to take a far more aggressive stance at the bargaining table.

Any space based weapons program will likely result in a number of commercial benefits. An operational aerospace strike aircraft will have the ability to takeoff, leave the atmosphere, perform a given task, reenter the atmosphere, and land. This could result in a direct commercial benefit in two areas: satellite launch and commercial air transport.

A civilian derivative of a military aerospace craft, or a contracted military craft itself, could be employed as a reusable satellite launch vehicle. Also, technologies in areas such as propulsion, fuels, and construction materials could be used to produce a next-generation commercial aircraft. Of course, any possible commercial benefits are contingent upon the program existing in an unclassified state. However, joint development of a SSTO system with a commercial agency such as the National Aeronautics and Space Administration (NASA) would enable the overall program to share development costs and draw upon a larger pool of engineers to solve tough technical problems as they develop.

PROBLEMS TO OVERCOME
The primary obstacle to developing and producing an aerospace craft is that of cost. Simply put, advanced technology comes at a price. The closest example to a military aerospace craft was the NASA X-30 program of the 1980s and 1990s. The X-30 program never resulted in a flight vehicle, but cost estimates generated during the latter stages of the program estimated that $17 billion would have been needed to go from design to flight test, with a further amount of up to $20 billion being needed to produce an operational example.[25] In comparison, the original Engineering, Manufacture, and Development (EMD) contract awarded for the F-22A program was $11 billion.[26]

Fortunately for a military space based weapon system, there was a good deal of research done during the X-30 program, so designers would not necessarily be starting from scratch. That fact alone should help to reduce overall program cost. A production run of operational examples will also help to alleviate the burden of program costs by allowing development costs to be pro-rated over the production run. Individual aircraft cost would rise accordingly, but the yearly overall strain on the Federal budget would be reduced by not having to spend all of the money at once.

Political ramifications must certainly be considered when making the decision to develop and deploy an aerospace weapon system. It should first be noted that such a system can operate “within the law,” as there are currently no international laws precluding the usage of such a system, as it effectively operates outside the national boundaries of any nation on Earth.[27] However, that certainly does not mean that objections to such a system will not be raised.

The primary political objection to a space based weapon system will be a matter of defense. For the first time, a nation will have an unquestioned and total superiority in the battlespace environment. Current and projected defensive systems in the possession of threat nations will offer absolutely no defense against a space based weapons platform.

There are two ground based defensive systems which could conceivably intercept or threaten a space based weapon system. The first such system is the National Missile Defense system, in the hands of the United States, and as such would certainly not be regarded as a threat to a USAF-operated space based weapon system. The second potential threat system is the Russian A-135 anti-ballistic missile (ABM) system currently situated around Moscow. The 51T6 (ASIC codename: GORGON) exoatmospheric and 53T6 (ASIC codename: GAZELLE) endoatmospheric interceptors used by the A-135 are not in a position to be proliferated to threat nations as they are out of production, and employ nuclear warheads to perform their intercepts.[28] Also, given the current state of US-Russian international relations, and the continued presence of the Russian nuclear deterrent force, Russia should not be regarded as a potential target for any US strike platform, aerospace craft or otherwise.

Missile defense systems are the undisputed purview of the two Cold War superpowers. Given their complexity and the expense needed to develop and employ such systems, genuine missile defense systems are not likely to be obtained by threat nations in the near term, and as such are not regarded as being a threat to a space based weapon system.

Anti-missile satellites or other such space based interceptor systems, as is the case with anti-missile systems, do not pose a serious threat to a space based weapon platform. Any space based weapon system could conceivably be equipped with offensive or defensive anti-satellite systems to counter such a threat. While threat nations possessing space launch capabilities such as Iran and China could conceivably develop and employ anti-satellite systems, a space based weapon system could either destroy these systems in orbit or neutralize the launch facilities before launch can be accomplished.

This lack of defensive capability will no doubt be a cause of concern for many nation states. The United States will be in a position to act preemptively against any foreign state perceived to be a threat to national security interests. This could potentially affect the relationship between the United States and other nation states. There is a possibility that threat nations will be more likely to form alliances, and to act militarily whenever the opportunity exists. There is also a distinct possibility that threat nations will feel compelled to act, using weapons of mass destruction or other systems likely to be targeted by a space based weapon system, out of fear of losing that battlefield capability in the future. Ultimately however, the United States is in a position to counter any current aggressor with existing systems, and as such should not feel compelled to abandon the concept of a space based weapon system for political reasons alone.

The last issue regarding development of a space based weapon system is one of armament. Current weapons employed by existing strike aircraft, such as the Joint Direct Attack Munition (JDAM), would not be compatible as they are not capable of withstanding the heat of atmospheric reentry. This would result in a further research and development effort, imposing a further cost on the program.

Ultimately, kinetic weapons may prove to be the best choice for an aerospace weapons platform. There is no risk of premature detonation upon reentry, the weapons bay does not have to incorporate special cooling systems to ensure that warheads are not heated to the point of detonation during high-speed flight or atmospheric reentry following a cancelled strike, and they will possess enough kinetic energy to obliterate any target on the surface of the Earth.

THE B-3
One of the primary roles for an aerospace strike vehicle will be to serve as the USAF’s next-generation bomber, the “B-3.” However, even if the system is mooted as a long-range strike platform, it will by nature be capable of performing a plethora of missions if given the right equipment. Certainly, the strike mission is of the most importance. That being said, given the quick-reaction nature of the craft, it could also be used in an intelligence gathering capacity. This could help to reduce the current dependency on expensive to maintain satellites. The craft could also be employed in an anti-satellite capacity if given rudimentary targeting sensors and an appropriate offensive weapon system.

When designing the next-generation bomber, the follow-on to the B-2A, there is one question that will invariably arise. Should it be a low-observable aircraft, another “stealth” bomber? Given that it has already been determined that the next-generation bomber should be an aerospace craft, the answer is no.

Stealth technology is certainly a very valuable asset, as the recent combat performance of systems such as the F-117A and B-2A will demonstrate. The problem is that it is, for the most part, physically impossible to make a hypersonic stealth aircraft. Even if the aircraft is restricted to operating within the confines of the Earth’s atmosphere, certain physical attributes will virtually eliminate any chances of bestowing low observable characteristics on the aircraft. Consider the three main aspects of stealth technology: radar signature, infra red signature, and electronic signature.

An aircraft’s electronic signature, or the level of detectable electronic emissions emanating from the aircraft, is typically the easiest by nature to control: designers can simply eliminate or greatly reduce the number of detectable emitters on the aircraft. A prime example of this would be Lockheed’s F-117A. The F-117A’s offensive sensor suite consists primarily of two passive infra red sensors and a laser designator. Infra red sensors are passive and therefore do not radiate emissions which could be detected and tracked by an enemy, and laser designators, while they are active emitters, give off emissions in quantities which are still very difficult to detect or track. A strike aircraft can, therefore, employ passive or hard to detect offensive sensors and still retain a high degree of accuracy.[29] The problem areas for making a high-speed aircraft stealthy are, therefore, primarily concerning the radar and infra red signatures of the aircraft.

An aircraft’s radar signature, measured in square meters, is defined as “the ratio of the scattered power density in a given direction (usually the backscatter) to the incident power density normalized so as to be independent of the distance R at which the scattered power is measured.”[30] In simpler terms, RCS is the amount of radar energy reflected by a target which returns to the transmitting emitter. This reflected energy is then interpreted by computers to determine the location of the objects which generated the returns, providing radar operators with a “picture” of the area which they are scanning.

When dealing with an orbital strike platform, radar detection by a hostile nation becomes less important. First, radar detection of threat systems is necessary in order to prosecute an engagement with radar-guided surface-to-air missiles (SAMs) or to direct interceptors towards their target. As neither of these systems represents a threat to an incoming strike aircraft cruising at orbital velocity above the atmosphere, radar detection can be effectively overlooked as it pertains to a threat aspect. Second, there is the issue of early warning. A hostile nation state could employ radar in a conventional environment to detect incoming aircraft and defend or relocate sensitive items which may be targeted.

Defensive systems employed by hostile nation states have already been determined to be of no concern where an aerospace craft is concerned, so the primary concern becomes relocation of targeted items such as mobile missile systems. The issue then becomes one of reaction time. If an aerospace craft can launch from CONUS and reach a target in Iran in thirty minutes, for example, the question is as follows: how much reaction time will the Iranian air defense network have before the craft is overhead?[31]

Consider the following set of parameters: a launch from Whiteman AFB, Missouri, a range to the closest point in Iran of 6410 miles, and an escape speed of 25,000 miles per hour. It will take the strike platform 15.384 minutes to reach Iranian airspace.[32] If Iran can detect inbound targets 200 miles away from its borders, it will detect the aerospace craft roughly 14.904 minutes after it launches, providing a reaction time of roughly 30 seconds. Clearly, there will be insufficient reaction time to react. Radar detection of the aerospace craft is, therefore, of no concern to designers, as hostile nation states will not have sufficient time to react to its presence whether it is detected or not.

The third primary aspect of stealth technology, reducing the infra red signature, is beyond the technical means of a hypersonic aircraft. Airframe friction at high Mach numbers will endow the aircraft with a very large infra red signature. Engine exhaust temperatures will be stratospheric and, given the use of afterburning engines, scramjets, or other exotic propulsion methods, the infra red signature of the exhaust will be impossible to effectively mask. A further issue with the exhaust is that high-temperature exhaust plumes can generate their own radar signature and contribute to the aircraft’s overall radar cross section. This effect was noted during the development of the CIA’s OXCART Mach 3 reconnaissance platform during the late 1950’s and early 1960’s and was identified as a primary contributor to the aircraft’s radar cross section.[33] However, as radar detection has already been proven to be a non-issue, infra red detection can be treated in the same fashion.

Simply put, stealth technology, even if it could be applied to an aerospace craft, is not needed anyway. The USAF would be mindful to avoid the trap of attempting to apply the “latest and greatest” technologies to any future aerospace strike platform. Given the current emphasis on stealth technology in nearly every major US weapons program, over all branches of the Department of Defense, this is certainly a valid concern.

Once a decision to generate a force of orbital strike aircraft has been made, the next issue that must be addressed is the size of the fleet. In order to be an effective weapon system, the B-3 must be able to effectively engage multiple targets on a single sortie. This requires a decent payload capacity, and as payload capacity increases, so does the size of the craft itself, and consequently its cost. The key will be to balance airframe size, and therefore cost, with target engagement capability. Multiple target engagement capability means fewer systems are needed. Ultimately however, the defining factor regarding the number of aircraft employed will most likely be cost, regardless of the capabilities it offers.

It should be noted that a fleet of aerospace strike aircraft is not intended to serve as the only offensive air arm of the US military. Air defense aircraft such as the F-22A are still needed, as an aerospace craft by nature cannot effectively perform an air intercept mission or a combat air patrol. However, given a large enough fleet of aerospace craft, the USAF could replace its entire fleet of strike aircraft, ranging from tactical bombers such as the F-15E to strategic bombers such as the B-1B. The savings gained by making such a bold and sweeping move would be enormous.

Certainly, in some situations, a definitive military presence is required to perform a “show of force,” or to act as a deterrent between nation states. In these instances, the US Navy can be called upon to deploy an aircraft carrier and its associated air wing to a given theater of operations. Also, combat aircraft are often called upon to support ground forces. Again, the US Navy could take on this responsibility. Any further gaps in the USAF’s capability could be taken up by either low-cost UCAVs, or an increased number of F-22As.

IMPACT OF SPACE BASED SYSTEMS ON THE USAF
One notable effect on the USAF following the induction of an aerospace weapon system into the active inventory will be that of reorganization. New command structures governing the aerospace arm of the USAF will be needed to take full effect of the new capabilities that an aerospace strike system brings to the table. The simple answer would be for such a system to fall under the purview of United States Space Command (USSPACECOM). However, USSPACECOM is not currently knowledgeable on contemporary USAF operations and has little or no experience with regards to day-to-day warfighting. Currently, USSPACECOM manages USAF space activities, none of which are offensive-minded (ICBMs, after all, fall under Air Combat Command). The answer is a merger of elements of USSPACECOM with the other main combatant commands and bringing the space battlefield environment, and the new capabilities available, to the attention of military planners and warfighters at all levels.

Once a command structure is established, joining space assets with more conventional weapon systems, new doctrine and tactics will be needed to effectively utilize all available systems in a given wartime environment. Currently, the only credible quick-strike capability in the USAF is nuclear, in the form of ICBMs. ICBMs are strategic weapon systems, and as such doctrine and tactics regarding their usage will not necessarily effectively translate to a conventional system.

One area of the USAF must be improved if a quick-reaction aerospace craft is to be employed effectively: intelligence. A system that can strike any target in the world within mere minutes must be backed up by accurate, real-time intelligence if it is to be successful. The solution can be provided through various means. First, an aerospace craft configured for a reconnaissance mission rather than a strike mission could be used to make a final pass over the target area before a strike. The intelligence gathered could be datalinked back to commanders, who will then make the call to deploy or not deploy the strike aircraft. Second, satellites could be employed in larger numbers to provide users with a larger range of intelligence data. When hostilities with a given nation state escalate to the point where military action may become necessary, a satellite could be placed into a geostationary orbit over the potential aggressor to provide real-time intelligence data by the minute. Third, given that satellite coverage is not guaranteed, and electro-optical satellites may find their target obscured by cloud coverage, stealthy reconnaissance aircraft could be employed in-theater to provide final verification of targets. Finally, more thorough analysis of current intelligence data, as it is gathered, will provide commanders with a better picture of the battlespace environment and the intended target area without the need for other measures to be put into effect.

The B-3 is intended to be a quick-strike weapon system, and providing planners with the needed data in a timely and efficient manner is crucial to its effective execution of its design goals. Ultimately, the intelligence network must be tailored to provide real-time, accurate intelligence data on very short notice, in order to make the most of the B-3s extraordinary abilities.

CONCLUSION
The decision to proceed or not proceed with an aerospace strike platform will ultimately hinge on its affordability. Given the exceptional and revolutionary capabilities it will bring to the USAF, and the benefits that will be gained through the possession and employment of those capabilities, it can be argued that the benefits will outweigh the costs. USAF officials should argue that developing, employing, and maintaining the B-3 will be cheaper over the long run than proceeding along three paths to produce a new strategic bomber, an intermediate strike aircraft, and a quick-response strike system.

The benefit of having the ability to strike anywhere in the world within minutes cannot be overstated. Politically, it provides the US government with a “big stick” to carry to any international bargaining table. Militarily, it provides planners with the ability to deal with short-notice taskings virtually immediately, and to provide a new form of deterrence suited to the Twenty-First Century world.

Perhaps the most important benefit of an operational aerospace weapon system is the guarantee of US superiority over the coming decades. No other threat nation will possess a similar system, or even a viable defense against such a system, for at least fifty years. When one considers the military capabilities and technological bases of nations such as Iran, Syria, or China, the evidence is clear: the United States will maintain a decisive strategic war fighting edge over any threat nation for quite some time. That decisive war fighting edge is the ultimate driving point behind the argument for an aerospace weapon system. One can only hope that the point is not lost on the United States Air Force.
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[1] Michael Shirak, “USAF focuses on future long-range strike plans,” Jane’s Defence Weekly, 28 January 2004, 12.
[2] Jay Miller, Lockheed Martin F/A-22 Raptor Stealth Fighter, (Hinckley: Midland Publishing, 2005), 76.
[3] Michael Shirak, “US Air Force prepares for prompt strike study,” Jane’s Defence Weekly, 11 May 2005, 10.
[4] Michael Shirak, “Minotaur III eyed for global attacks,” Jane’s Defence Weekly, 11 May 2005, 10.
[5] Ibid.
[6] Colonel George D. Kramlinger, USAF, “Narrowing the Global-Strike Gap with an Airborne Aircraft Carrier,” Air & Space Power 19, no. 2 (Summer 2005): 94.
[7] This action should not be confused with the Space Shuttle’s jettisoning of solid rocket boosters (SRBs) as it ascends towards orbit. The SRBs are simply jettisoned; in the case of TAGBOARD, both launcher and drone were required to maintain controlled flight before and after separation.
[8] The single-seat OXCART aircraft, also known as A-12s, were the predecessors of the SR-71A. The two-seat D-21 mothership was known as the M-21.
[9] Tony R. Landis and Dennis R. Jenkins, Lockheed Blackbirds, 2d ed. (North Branch: Specialty Press, 2004), 24-25.
[10] David Myhra, Sänger: Germany’s Orbital Rocket Bomber In World War II (Atglen: Schiffer Publishing Ltd, 2002), 49-52.
[11] Ibid., 61.
[12] Ibid., 77-79.
[13] Ibid., 4.
[14] Bill Yenne, Secret Weapons Of The Cold War (New York: Berkeley Books, 2005), 144.
[15] Jay Miller, The X-Planes – X-1 to X-45 (Hinckley: Midland Publishing, 2001), 233.
[16] Bill Yenne, Secret Weapons Of The Cold War (New York: Berkeley Books, 2005), 147.
[17] Jay Miller, The X-Planes – X-1 to X-45 (Hinckley: Midland Publishing, 2001), 239.
[18] William B. Scott, “Two-Stage-to-Orbit ‘Blackstar’ System Shelved at Groom Lake?” Aviation Week & Space Technology, 5 March 2006. On-line edition.
[19] Yefim Gordon and Vladimir Rigmant, OKB Tupolev: A History of the Design Bureau and its Aircraft (Hinckley: Midland Publishing, 2005), 327-330.
[20] Bill Yenne, Secret Weapons Of The Cold War (New York: Berkeley Books, 2005), 150-151.
[21] Bill Gunston and Yefim Gordon, MiG Aircraft since 1937 (London: Putnam Aeronautical Books, 1998), 233-235.
[22] James Goodall, B-2 Spirit in action (Carrollton: Squadron/Signal Publications, Inc., 2002), 39.
[23] The only problem was the 15-16 hour ingress time. In a future conflict, when time-sensitive targets must be hit on short notice, 15 to 16 hours will not be sufficient.
[24] James Michael Snead, “Global Air Mobility and Persistent Airpower Operations,” Air & Space Power 18, no. 3 (Fall 2004): 44.
[25] Jay Miller, The X-Planes – X-1 to X-45 (Hinckley: Midland Publishing, 2001), 311-312.
[26] Jay Miller, Lockheed Martin F/A-22 Raptor Stealth Fighter (Hinckley: Midland Publishing, 2005), 42.
[27] Major Samuel L. McNiel, USAF, “Proposed Tenets of Space Power,” Air & Space Power 18, no. 2 (Summer 2004): 80.
[28] Pavel Podvig, ed., Russian Strategic Nuclear Forces (Cambridge: The MIT Press, 2001), 414-418.
[29] A system such as the B-3 may be able to do away with offensive sensors altogether. Given that it will, by design, be striking targets in minutes instead of hours, there may not be time to rely on onboard sensors for target identification and designation. Ergo, the B-3s weapons will most likely be targeted by other means, such as the Global Positioning System (GPS), whereby target coordinates can be fed into the weapons before launch, negating the need for onboard targeting.
[30] David C. Aronstein and Robert J. Piccirillo, HAVE BLUE and the F-117A: Evolution of the “Stealth Fighter” (Reston: American Institute of Aeronautics and Astronautics, Inc., 1997), 208.
[31] This is, of course, based on the assumption that Iran acquires the ability to detect such a craft.
[32] Ranges calculated using the Google Earth program’s measure tool.
[33] Tony R. Landis and Dennis R. Jenkins, Lockheed Blackbirds (North Branch: Specialty Press, 2004), 10.