F-22 Raptor: FY 2006 Procurement & Events
The fifth-generation F-22A Raptor fighter program has been the subject of fierce controversy, with advocates and detractors aplenty. This DID focus article covers both sides of that controversy, and also addresses key events and procurement decisions that took place during FY 2006 (October 1, 2005 – October 1, 2006).
A newer DID article offers continuing coverage of the F-22 program.
At the same time, the Raptor has done extremely well in exercises against F-15s, with reported kill ratios of up to 108:0 during Exercise Northern Edge 2006. While it’s always wise to take such figures with a grain of salt until one has reviewed the exercise setup and conditions in full, the raw number is impressive. Advocates contend that the F-22′s combination of stealth, vectored thrust, range, advanced electronics with potential electronic warfare applications, and sustained supersonic flight (aka “supercruise”) arguably place it in a class by itself among the world’s combat aircraft.
CDI disagrees, though having seen their circulated presentations, DID believes their arguments as presented contain a number of important holes as well as some valid points. F-16 program analyst Pierre Sprey and author James Stevenson argued that the F-22′s fuel:weight ratio, wing loading, and acceleration are inferior to existing fighters. They believe that peacetime exercises are designed with predetermined outcomes in mind and can’t be relied on, and question the lethality of air-air missiles based on their war record (which generally falls between the 1960s-1980s). Sprey and Stevenson also question the F-22′s stealth on the grounds that its own radar will give it away when used, and note that the unreliability of IFF(Identification, Friend or Foe) has generally meant that combats are fought at close ranges where stealth is largely negated. They contend that numbers, acceleration, fast changes in energy state, and a 360 degree cockpit view count for more in such situations.
Their sharpest criticism notes that the F-22′s small production run of under 200 planes make it the Me-262 Sturmvogel of its time. The Me-262 was the world’s first production jet fighter, with performance that could dominate any allied plane. The 200 or so aircraft produced were swept from the skies in World War 2 by 2,000 or so P-51 Mustangs, P-47 Thunderbolts, et. al.
F-22 pilot Lt. Col. Wade Tolliver responded in a June 13th Viginian-Pilot article:
“In the Raptor, “I can outmaneuver an F-16, F-15, F-18. It doesn’t matter…” [and] the F-22′s radar works in a way that allows him to use it without revealing himself. Though its exact workings are classified, the F-22 is known to emit radar signals in extremely short bursts over multiple frequencies.
“Even if you detect me, you’re not going to know where I am a second from now,” said Joe Quimb, a spokesman for Lockheed Martin, the Raptor’s principal builder.
Tolliver said that radar and other sensors, along with information fed into the Raptor’s computers from ground-based radars and other planes, gives F-22 pilots an unmatched view of potential threats and targets aloft and on the ground… “It’s amazing the information you have at your fingertips,” Tolliver said. In no-holds-barred mock battles with F-15s, F-16s and the Navy’s F/A-18 Hornets, he and other Raptor pilots generally “destroy” their adversaries before those foes even realize they’re around…”
Read this DID article for more coverage of the F-22′s active & passive sensor capabilities. DID also covered journalist David Axe’s work over at Defense Tech, as he talks to the people who fly the Raptor in his “Raptor… or Turkey?” series.
According to Pentagon budget documents, the F-22 Raptor program’s FY 2006 budget is $4.22 bilion (FY05: $4.62 billion), in return for 24 production F-22As and 1 test aircraft (FY05: 24/0). The procurement budget is $3.77 billion (FY05: $4.09 billion), and the RDT&E budget is $448.2 million (FY05: $530.2 million).
By the end of Lot 6 production (the current batch), the Air Force and manufacturer expect to have all the major design changes to the Raptor worked out; there should be no more changes to the aircraft after that until the service wants to produce an F-22B or F-22C model.
Lockheed notes that their nationwide production team has achieved Lot to Lot cost reductions greater than 10% through Lot 4 production. Larry Lawson, Lockheed Martin executive vice president and F/A-22 program manager, adds that “…production stride and tempo is high and while there may not be more 10% reductions to achieve Lot to Lot, we’re continuing to focus on cost reductions and efficiency improvements.” A June 23, 2006 US Air Force article adds: “The current cost for a single copy of an F-22 stands at about $137 million. And that number has dropped by 23 percent since Lot 3 procurement, General Lewis said. “The cost of the airplane is going down,” he said. “And the next 100 aircraft, if I am allowed to buy another 100 aircraft… the average fly-away cost would be $116 million per airplane.” ”
The F-22A Raptor is assigned to four bases across the US:
- Operational F-22As of the 1st Fighter Wing are assigned to Langley AFB, VA
- Testing is conducted at Edwards AFB, CA
- Tactics development takes place at Nellis AFB, NV
- Pilots and maintenance teams receive training at Tyndall AFB, FL
Sept 27/06: House and Senate defense appropriators have tentatively approved multi-year procurement of the F-22A, “realigning” $210 million in additional funds from the base budget line to the advance procurement line and bringing the total budget for advance procurement to $687.4 billion. The move would fund 20 fighters each year through FY 2006, 2007, and 2008; but it must remain in the final FY 2007 budget in order to become official. A move to consider foreign sales of the F-22, however, was rejected. See full Aviation Week article.
Aug 8/06: Boeing Starts Production of Aft Fuselage for 100th F-22 Raptor. A corporate release that normally wouldn’t draw DID’s interest – but they describe a couple of the manufacturing improvements implemented during the program.
Aug 4/06: Learning to handle a new and stealthy aircraft like the F-22 to its full potential isn’t just a job for its pilots. Tyndall AFB in Florida is the first base to develop integration tactics for ground and air command and F-22s, and is using the new capabilities to train all new F-22 pilot and air battle manager students.
One change is a greater emphasis on stealth-friendly mission protocols: the goal is for an F-22 pilot to leave his home base, locate, cue in on and destroy all targets, receive the locations of all possible threats, receive landing instructions and come home safely without being seen or heard, on radar or via more obvious radio intercepts. This USAF Link article covers some of the efforts along those lines, including the use of Link 16 and other relatively ‘silent’ encrypted data channels for text messaging, situation updates, etc.
July 26/06: In testimony to the Senate, Secretary of the Air Force Michael W. Wynne said the USAF has met 5/6 legislative requirements for proceeding with multi-year funding on the F-22 aircraft – the last being full funding authorizaton from Congress, which he intends to meet in the FY 2008 program objective memorandum. The 6 requirements under Title 10 U.S. Code, Section 2306B are: (1) promotes national security, (2) the number of aircraft required is stable, (3) the aircraft design is stable, (4) the contract will result in substantial savings, (5) the cost estimates for the contract and cost avoidance are realistic, and (6) able to provide stable funding throughout the contract period.
July 25/06: The July 25, 2006 Congressional Budget Office testimony to the Senate regarding the proposed multi-year buy of F-22s is lukewarm at best. The short version? The percentage is small relative other aircraft programs, funding for the 60 aircraft involved is not set, any cancellation costs aren’t covered, and savings are uncertain.
June 23/06: An Air Force Link article notes that the USAF and manufacturers are finalizing F-22 design issues. Those issues include changes to the canopy actuator, the air recharge system, the nose gear retraction system, the forward boom heat treatment, and several structural retrofits. The total cost to make these repairs to the existing fleet of Raptors comes to about $105 million, and these issues will be corrected in the production line for lots 6 to 9 (each lot = 20-25 aircraft).
The USAF is also lobbying for a multi-year procurement buy for the 60 aircraft in Lots 7, 8 and 9 of the F-22A. The last jet in that series would be delivered around 2011, and the USAF estimates that bulk buys would allow savings of up to $225 million. See USAF Link article. The Project On Government Oversight disputes the savings, and the US Congress is reportedly very lukewarm on the idea so far.
June 12/06: The F-22 Combined Test Force team of The Boeing Company, Lockheed Martin, and the US Air Force successfully tested the F-22′s precision strike capabilities at White Sands Missile Range, NM. The F-22 flew at a speed of Mach 1.5 at 50,000 feet, released a 1,000 pound GPS-guided JDAM from a range of 24 nautical miles to destroy a ground target. The drop tested the Raptor’s Launch Acceptability Region (LAR) supersonic algorithm, developed by a Boeing collaboration of F-22, Phantom Works and JDAM engineers. It defines the area in the sky from which the pilot can release a weapon to successfully attack the desired target, factoring in in navigation, weather, target and weapon information. See Boeing release.
May 10/06: Titanium prices have been cited as potential future cost issues for the F-35 and F-22 fighter programs, but a 1973 US law called the Berry Amendment has the effect of restricting supply and raising prices. On May 10, the Aerospace Industry Association reported that they’ve reached agreement in principle with senior leaders of the Defense Department on changes to the Berry Amendment.
April 29/06: Armed Services tactical air and land forces subcommittee chair Rep. Curt Weldon [R-PA] criticized the USAF’s new F-22A buying strategy, and his subcommittee proposes a different funding approach for the F-22A. Read the full Inside Defense article for all the maneuvering involved, which surely rivals most dogfights for intricacy.
Feb 20/06: F-22 Raptors to Japan? Inside The Air Force (ITAF) reports that momentum is building within the Air Force to sell the ultra-advanced F-22A Raptor abroad to trusted U.S. allies, as a way of plussing up numbers and production. The Japanese are lobbying, and some military personnel think it’s a good idea.
January 10/05: US Plans to Retire B-52s, C-21s, F-117 & U-2 for more F-22s. The move was designed to add $1 billion to the F-22A Raptor program in order to keep the production line running. As long as it is running, then future contingencies and needs leave the USAF with the option of ordering more.
Dec 15/05: Elec Tricks: Turning AESA Radars Into Broadband Comlinks. The F-22′s large AESA radar may have an important capability that it’s builders hadn’t suspected. If so, the Raptor’s ability to securely share information with other AESA-equipped planes like the F/A-18 E/F Super Hornet, F-35 Joint Strike Fighter, and some F-15s could rise by several orders of magnitude.
Nov 15/05: In its annual Selected Acquisition Reports (SARs) submitted to the Congress for FY 2005 (ended Sept. 30, 2005), the US Defense Department had no slippages or cost increases to report for the F/A-22, just normal milestone reporting. Its SAR was submitted to rebaseline because it progressed from a Development to a Production Estimate, following the April 2005 approval of Full Rate Production (Milestone III) for the F-22A.
Oct 24/05: Supersonic SIGINT: Will F-35, F-22 Also Play EW Role? The F-22′s abilities in this area had been kept under wraps, but it’s coming out as a result of budget lobbying. The F-22 may have electronic warfare capabilities out of the box that rival dedicated aircraft like the EA-6B Prowler, and eavesdropping and scanning capabilities that rival 707 airliner-based aircraft like the RC-135 Rivet Joint.
Oct 6/05: Boeing is trying to get out ahead of the titanium supply issue. This issue matters to the F-22, which uses a lot of titanium. See “Titanium Deal Snagged to Fight Supply Woes.”
October 2005: Air Force Magazine Online (October 2005) – England Launches New Fighter Review. Deputy Secretary of Defense Gordon England’s upcoming new air power review, which may provide further cuts in the F/A-22 and F-35 programs after all is said and done (in the end, the numbers remained stable).
The F-22A Raptor is built at Lockheed Martin Aeronautics facilities in Palmdale, CA; Meridian, MS; Marietta, GA; and Fort Worth, TX, as well as Boeing’s plant in Seattle, WA. The Raptor program also includes 1,000 nationwide suppliers and subcontractors in 42 states. Final assembly and initial flight testing of the Raptor occurs at Lockheed’s Marietta, GA plant facilities. As of June 2006, Lockheed has delivered 71 F-22As to the USAF, with 107 Raptors currently on contract.
Unless otherwise specified, the Headquarters Aeronautical Systems Center at Wright-Patterson Air Force Base, OH issues all contracts listed here, and Lockheed Martin Corp. in Fort Worth, TX (near Dallas) is the recipient.
Sept 29/06: United Technologies Corp. in East Hartford, CT received a $6 million cost-plus-fixed fee contract modification for the Lot 4 F119 engines Life Cycle Reduction Program. Work will be complete August 2009 (F33657-03-C-2011). See the presentation “Cost Reduction Task Force Key to Raptor Affordability” [PDF, 8.6 MB] for more context.
Sept 27/06: A $98.9 million firm-fixed-price contract modification. This undefinitized contract action increase is not-to-exceed, F-22A Lot 6 long-lead procurement and funding through Oct. 31, 2006. At this time, $74.1 million has been obligated. Work will be complete February 2010 (FA8611-05-C-2850/P0003).
Sept 27/06: A $17.9 million firm-fixed-price contract modification provides for production support systems in support of F-22A Lot 6 production; all funds have already been obligated. Work will be complete February 2010 (FA8611-05-C-2850/P00029)
Sept 21/06: United Technologies Corp. in Hartford, CT received a $455.1 million firm-fixed-price & cost-plus-fixed fee contract modification covering Lot 6 production of 48 F119 engines, plus calendar year 2006 field support and training. Solicitations began July 2005, negotiations were complete September 2006, and work will be complete December 2006. The Headquarters Aeronautical Systems Center at Wright-Patterson Air Force Base, OH issued the contract (FA8611-05-C-2851/ P00010).
Sept 5/06: Defense Systems in North Amityville, NY received a $10 million firm-fixed-price contract for “bomb rack units in support of F-22 aircraft.” Half of the funds have already been committed, and work will be complete in January 2009. The Headquarters 542d Combat Sustainment Wing at Robins Air Force Base, GA issued the contract (FA8520-06-C-0015).
Aug 16/06: A $119.9 million firm-fixed price and cost-plus-fixed fee contract modification. This undefinitized contract action increases the current undefinitized contract action amount in order to extend the period of performance for Performance Based Agile Logistics Support (PALS). PALS for F-22A Lot 6 Contract Line Item Numbers will extend until September 30, 2006. At this time, $89.9 million has been committed (FA8611-05-C-2850)
Aug 8/06: A $19.6 million firm-fixed-price undefinitized action contract for advance procurement of titanium in support of F-22A Lot 8 aircraft, with full funds committed. Work will be complete in October 2009, which is when Lot 8 production is scheduled (FA8611-06-C-2899).
As noted above, the F-22 makes heavy use of titanium in order to give it the lightness, strength, and temperature resistance required. Someone obviously thinks the price is about to rise – and given increased global demand, they’re hardly alone.
July 12/06: United Technologies Corp. subsidiary Pratt and Whitney in East Hartford, CT received a $16.5 million firm-fixed-price and cost-plus-fixed fee contract modification. This undefinitized contract action for Lot 6 production F119 engines covers long lead items and field support, and a training period of performance extension. Solicitations began July 2005, negotiations were complete in July 2006, and work will be complete by December 2006 (FA8611-05-C-2851/P00007).
July 5/06: We’re just going to quote this one. It’s a firm-fixed-price contract modification to Lockheed Martin, for $552.7 million. Negotiations were complete in June 2006, and work will be complete February 2010:
“This undefinitized contract action extension period of performance is through Sept. 30, 2006, for F-22A lot 6, long-lead activities and increase not-to exceed.” …The public affairs point of contact is Capt. Everdeen, (937) 255-1256… (FA8611-05-C-2850).
July 5/06: A $99 million firm-fixed-price contract modification. This undefinitized contract action is for F-22 lot 6 program support/annual sustaining period I through Sept. 30, 2006. Negotiations were complete in June 2006, and work will be complete by September 2006 (F33657-97-C-0031).
June 15/06: A $187.1 million firm-fixed-price contract modification to provide for an extension to the advance buy period of performance from June 2006 through September 2006, and increases the outlay amount. This action supports F-22A Lot 7 production. Work will be performed at Lockheed Martin Aeronautics Co. in Marietta, GA (33%) and Fort Worth, TX (35%); and Boeing Information and Space Defense Systems, Aircraft and Missile Systems group in Seattle, WA (32%). Work will be complete in October 2009 (FA8611-06-C-2899/P00005)
May 19/06: United Technologies Corp. in East Hartford, CT received a $5 million firm-fixed-price contract to cover advance procurement items for 40 Pratt & Whitney F119 engines. This work will be complete December 2006 (FA8611-06-C-2900).
May 15/06: A $62 million firm-fixed-price & cost-plus fixed-fee contract modification that increases the current undefinitized contract for Lot 6, F-22 aircraft performance based agile logistics support (PALS) activities. Specifically, this modification funds PALS 3010 activities through June 2006, plus authorized work to begin on 3600 funded support equipment development activities. Additionally, this modification increases the obligation amount for the Lot 6 PALS effort to 75% – $137.3 million has been obligated at this time. Work will be complete December 2006 (FA8611-05-C-2850/P00015).
May 3/05: A $143.1 million firm-fixed price contract modification, which is an undefinitized contract action for F-22 Lot 6 replacement test aircraft. This work will be complete February 2010 (FA8611-05-C-2850/P00014).
April 24/06: A $103 million firm-fixed price & cost-plus-fixed fee contract modification to increase fund production long lead diminished manufacturing sources activities and performance-based agile logistics support of 3400 funded activities through June 30, 2006. The location of performance is Lockheed Martin Corp., in Marietta, GA(33%), Fort Worth, TX (34%); and Boeing in Seattle, WA (33%). Work will be complete December 2006 (FA8611-05-C-2850/P00012)
March 13/06: A $383.5 million modification to increase Lot 6 F-22 production long lead activities, (including target price curve and diminishing manufacturing sources); and long-lead performance-based agile logistics support activities; and the aircraft structural integrity program. Work will be complete December 2006 (FA8611-05-C-2850/P00009).
Feb 28/06: United Technologies Corp. subsidiary Pratt and Whitney Aircraft Group in East Hartford, CT received a $153.5 modification that will support the F119 Engine’s Lot 6, Long Lead Items and Field Support and Training period of performance extension. Solicitations began July 2005, negotiations are expected to be complete May 2006, and work will be complete December 2006 (FA8611-05-C-2851).
Feb 15/06: A $144.3 million cost-plus fixed-fee contract modification. This undefinitized contract action provides for F-22A Lot 6 Weapon System Support as a Capability Performance-Based Agile Logistics Support (PALS). Negotiations were complete in January 2006, and work will be complete by May 2006 (FA8611-05-C-2850/P00010).
Jan 25/06: United Technologies Corp. subsidiary Pratt and Whitney Aircraft Group in East Hartford, CT received a $56.7 million firm-fixed-price and cost-plus fixed-fee contract modification. This undefinitized contractual action will support the F119 Engine Lot 6, and work will be complete by March 2006 (FA8611-05-C-2851/P00003).
Jan 11/06: A $191.1 million not-to-exceed firm-fixed-price contract modification. This action provides long lead activities and Performance Based Agile Logistics Support (PALS) for F-22 Lot 6 aircraft and associated equipment. Negotiations were completed in December 2005, and work will be complete in February 2006 (FA8611-05-C-2850/P00008). As one might guess from the dates, a large chunk of the work had been done already, which is why $95.4 million was already obligated.
Jan 11/06: A $116.5 million firm-fixed-price fee contract modification provides for F-22 Lot 6 Program Support/ Annual Sustaining (PSAS) for period I, i.e. through June 2006. Negotiations were completed in December 2005 (F33657-97-C-0031/P00070). As a point of reference, the FY 2005 Lot 5 PSAS contract mentioned in DID’s November 17, 2005 article was a $160 million firm-fixed-price/ cost-plus fixed-fee contract modification that definitized FY 2005 production support/ annual sustainment associated with the F-22 Lot 5 batch.
Dec 23/05: An $18 million, undefinitized, firm-fixed-price contract modification. It covers Long Lead Effort for Replacement Test Aircraft (RTA) for the F-22A program, and work will be complete by February 2006 (FA8611-05-C-2850).
Nov 10/05: A $39.9 million firm-fixed-price contract modification to support F/A-22 Lot 6 production. This action provides for advanced procurement for 24 Lot 6 aircraft and associated equipment. Work will be performed ar Lockheed Martin Corp. in Marietta, GA and Fort Worth, TX, and Boeing in Seattle, WA. At this time, the full amount has been obligated, and work will be complete November 2005. Negotiations were complete October 2005 (FA8611-05-C-2850/ P00006)
Nov 9/05: A $2.99 billion firm fixed price contract modification to definitize the F/A-22 Lot 5 production acquisition for 24 aircraft. The location of performance is Lockheed Martin Corporation, Marietta, Ga. At this time, $1.98 billion has been obligated. This work will be complete November 2007. Solicitations began July 2004 and negotiations were complete November 2005. The Headquarters Aeronautical Systems Center, Wright-Patterson Air Force Base, Ohio issued the contract. (FA8611-04-C-2851).
Nov 9/05: A $160 million firm-fixed-price/ cost-plus fixed-fee contract modification to definitize the undefinitized action for calendar year 2005 production support and annual sustainment activity. This effort supports the F/A-22 Lot 5 production aircraft. The location of performance is Lockheed Martin Corporation, Marietta, Ga. Solicitations began July 2004, negotiations were complete November 2005, and work will be complete by December 2005 (F33657-97-C-0031). Both November 9 awards were covered in this DID article, as was this engine-related award…
Nov 7/05: United Technologies Corp. in East Hartford, CT received a $17.3 million firm-fixe-price and cost plus fixed fee contract modification to provide for contractual action for F119 engine, FY 2006-2007 to support the combined test force infrastructure at Edwards Air Force Base, CA. Solicitations began December 2003, negotiations were complete June 2005, and work will be complete December 2006 (FA8611-04-C-2852).
Sept. 30/05: A $17.7 firm-fixed price contract modification to support the F/A-22 Lot 5 Support System. The location of performance is Lockheed Martin in Marietta, GA. Total funds have been obligated, and work will be complete by November 2007. Negotiations were complete October 2005 (FA8611-04-C-2851/ P00026)
- Air Force Technology – F-22A Raptor Advanced Tactical Fighter Aircraft, USA
- US Air Force Link – F-22A mini-site. Includes articles, photos, background information.
- Pratt & Whitney F119 vectored-thrust jet engine
- MIT Lean Aerospace Initiative (March 23/05) – “Cost Reduction Task Force Key to Raptor Affordability” [HTML Google cache | PDF format, 8.6 MB]
- Air University School Of Advanced Airpower Studies, Maxwell AFB (June 2000) – U.S. Military Aircraft For Sale: Crafting an F-22 Export Policy [PDF format]. Excellent discussion of the F-22′s capabilities, as well as potential export issues and the considerations that will influence US policymakers.
- The Virginian-Pilot (June 13/06) – Air Force jet funding on the line with Senate vote. Looks at the F-22′s funding profile, and also offers a god back-and-forth between the points made in Pierre Sprey & James Stevenson’s CDI briefing and F-22A pilot Lt. Col. Wade Tolliver.
- Nieman Foundation for Journalism at Harvard University (April 19/05) – The F-22 Raptor is said to be invisible…until it isn’t. Covers the CDI event that featured Pierre Sprey’s and Jim Stevenson’s presentations re: the F-22. The file sizes of their Power Point presentations precludes making them available via DID, unless their size can be reduced or they are hosted at CDI (which they presently are not). See also their accompanying F-22 fact sheet.
- DID (Feb 7/06) – EDO’s AVEL Missile Ejection System: Extending the Raptor’s Claws. Covers the development of an important F-22 sub-system, which was a success by any project measure. Despite AVEL’s performance, Pierre Sprey et. al. make a plausible argument that the split-second nature of air combat may make even the seconds of opening and launch time created by the stealth-enhancing weapons bays a problem.
- DID (Jan 12/06) – US Plans to Retire B-52s, C-21s, F-117 & U-2 for more F-22s.
- DID (Dec 15/05) – Elec Tricks: Turning AESA Radars Into Broadband Comlinks. The F-22′s large AESA radar may have an important capability that it’s builders hadn’t suspected. If so, the Raptor’s ability to securely share information with other AESA-equipped planes like the F/A-18 E/F Super Hornet, F-35 Joint Strike Fighter, and some F-15s could rise by several orders of magnitude.
- DID (Dec 6/05) – $96.7M for Theory of Constraints & 6-Sigma Support in US Naval Aviation. What is Theory of Constraints, and why is it so powerful? DID explains, and notes the method’s use as part of the F-22 Raptor program, via Critical Chain project management.
- DID (Oct 24/06) – Supersonic SIGINT: Will F-35, F-22 Also Play EW Role? The F-22′s abilities in this area had been kept under wraps, but it’s coming out as a result of budget lobbying. The F-22 may have electronic warfare capabilities out of the box that rival dedicated aircraft like the EA-6B Prowler, and eavesdropping and scanning capabilities that rival 707 airliner-based aircraft like the RC-135 Rivet Joint.
- DID (Oct 18/05) – RAND PAF: Lessons Learned from the F/A-22 and F/A-18 Super Hornet Programs.
- United States Government Accountability Office (March 3/05) – Testimony Before the Subcommittee on Tactical Air and Land Forces, Committee on Armed Services, House of Representatives: Status of the F/A-22 and JSF Acquisition Programs and Implications for Tactical Aircraft Modernization. “Significant changes in the F/A-22 program have severely weakened its original business case…”
- Northrop-Grumman Analysis Center (April 200) – Analogues of Stealth [PDF, 4.6 MB]. This paper briefly explores antisubmarine warfare, examines the development and fielding of low-observable “stealth” aircraft and emerging countermeasures, and suggests analogues between past experience with stealthy platforms and countermeasures in the sea and the future of stealthy paltforms in the air.
- Australian Aviation, 1999 – Deedle, Deedle, Deedle, BANG! The Paradigm Shift in Air Superiority. Discusses the evolution of missiles, how this has affected aircraft design, and the significance of the F-22′s capabilities as the first air combat stealth fighter.
- Lockheed Martin Code One Magazine (April 1998) – F-22 Design Evolution. This wasn’t even the end of that evolution, merely the end of the first stage that eliminated General Dynamics’ design.