F-22 Raptor: Aircraft profile

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The F-22 Raptor is the Air Force's newest fighter aircraft. Its combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, represents an exponential leap in warfighting capabilities.

F-22 RaptorF-22 Raptor

The Raptor performs both air-to-air and air-to-ground missions allowing full realization of operational concepts vital to the 21st century Air Force.

The F-22A , a critical component of the Global Strike Task Force, is designed to project air dominance, rapidly and at great distances and defeat threats attempting to deny access to our nation's Air Force, Army, Navy and Marine Corps. The F-22A cannot be matched by any known or projected fighter aircraft.

Features

A combination of sensor capability, integrated avionics, situational awareness, and weapons provides first-kill opportunity against threats. The F-22A possesses a sophisticated sensor suite allowing the pilot to track, identify, shoot and kill air-to-air threats before being detected. Significant advances in cockpit design and sensor fusion improve the pilot's situational awareness. In the air-to-air configuration the Raptor carries six AIM-120 AMRAAMs and two AIM-9 Sidewinders.

F-22 Raptor: The F-22 Raptor performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. This F-22 is based at Langley Air Force Base, Va. The F-22 is the Air Force's newest fighter aircraft. The sophisticated F-22 aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. (U.S. Air Force photo/Tech Sgt Justin D. Pyle)F-22 Raptor: The F-22 Raptor performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. This F-22 is based at Langley Air Force Base, Va. The F-22 is the Air Force's newest fighter aircraft. The sophisticated F-22 aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. (U.S. Air Force photo/Tech Sgt Justin D. Pyle)

The F-22A has a significant capability to attack surface targets. In the air-to-ground configuration the aircraft can carry two 1,000-pound GBU-32 Joint Direct Attack Munitions internally and will use on-board avionics for navigation and weapons delivery support. In the future air-to-ground capability will be enhanced with the addition of an upgraded radar and up to eight small diameter bombs. The Raptor will also carry two AIM-120s and two AIM-9s in the air-to-ground configuration.

Advances in low-observable technologies provide significantly improved survivability and lethality against air-to-air and surface-to-air threats. The F-22A brings stealth into the day, enabling it not only to protect itself but other assets.

The F-22A engines produce more thrust than any current fighter engine. The combination of sleek aerodynamic design and increased thrust allows the F-22A to cruise at supersonic airspeeds (greater than 1.5 Mach) without using afterburner -- a characteristic known as supercruise. Supercruise greatly expands the F-22A 's operating envelope in both speed and range over current fighters, which must use fuel-consuming afterburner to operate at supersonic speeds.

The sophisticated F-22A aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. The F-22A design has been extensively tested and refined aerodynamically during the development process.

The F-22A's characteristics provide a synergistic effect ensuring F-22A lethality against all advanced air threats. The combination of stealth, integrated avionics and supercruise drastically shrinks surface-to-air missile engagement envelopes and minimizes enemy capabilities to track and engage the F-22A . The combination of reduced observability and supercruise accentuates the advantage of surprise in a tactical environment.

F-22 Raptor: Two F-22 Raptors from Tyndall Air Force Base, Fla., participate in a recent training exercise. (U.S. Air Force photo/Senior Master Sgt. Thomas Meneguin)F-22 Raptor: Two F-22 Raptors from Tyndall Air Force Base, Fla., participate in a recent training exercise. (U.S. Air Force photo/Senior Master Sgt. Thomas Meneguin)

The F-22A will have better reliability and maintainability than any fighter aircraft in history. Increased F-22A reliability and maintainability pays off in less manpower required to fix the aircraft and the ability to operate more efficiently.

Background

The Advanced Tactical Fighter entered the Demonstration and Validation phase in 1986. The prototype aircraft (YF-22 and YF-23) both completed their first flights in late 1990. Ultimately the YF-22 was selected as best of the two and the engineering and manufacturing development effort began in 1991 with development contracts to Lockheed/Boeing (airframe) and Pratt & Whitney (engines). EMD included extensive subsystem and system testing as well as flight testing with nine aircraft at Edwards Air Force Base, Calif. The first EMD flight was in 1997 and at the completion of its flight test life this aircraft was used for live-fire testing.

The program received approval to enter low rate initial production in 2001. Initial operational and test evaluation by the Air Force Operational Test and Evaluation Center was successfully completed in 2004. Based on maturity of design and other factors the program received approval for full rate production in 2005. Air Education and Training Command and Air Combat Command are the primary Air Force organizations flying the F-22A . The aircraft designation was the F/A-22 for a short time before being renamed F-22A in December 2005.

F-22 Raptor: Combining stealth, manueverability and supercruise with fully integrated systems, the F-22 Raptor has redefined "air dominance." (Courtesy photo)F-22 Raptor: Combining stealth, manueverability and supercruise with fully integrated systems, the F-22 Raptor has redefined "air dominance." (Courtesy photo)

General Characteristics

Primary Function: Air dominance, multi-role fighter
Contractor: Lockheed-Martin, Boeing
Power Plant: Two Pratt & Whitney F119-PW-100 turbofan engines with afterburners and two-dimensional thrust vectoring nozzles.
Thrust: 35,000-pound class (each engine)
Wingspan: 44 feet, 6 inches (13.6 meters)
Length: 62 feet, 1 inch (18.9 meters)
Height: 16 feet, 8 inches (5.1 meters)
Weight: 43,340 pounds (19,700 kilograms)
Maximum Takeoff Weight: 83,500 pounds (38,000 kilograms)
Fuel Capacity: Internal: 18,000 pounds (8,200 kilograms); with 2 external wing fuel tanks: 26,000 pounds (11,900 kilograms)
Payload: Same as armament air-to-air or air-to-ground loadouts; with or without 2 external wing fuel tanks.
Speed: Mach 2 class with supercruise capability
Range: More than 1,850 miles ferry range with 2 external wing fuel tanks (1,600 nautical miles)
Ceiling: Above 50,000 feet (15 kilometers)

Armament: One M61A2 20-millimeter cannon with 480 rounds, internal side weapon bays carriage of two AIM-9 infrared (heat seeking) air-to-air missiles and internal main weapon bays carriage of six AIM-120 radar-guided air-to-air missiles (air-to-air loadout) or two 1,000-pound GBU-32 JDAMs and two AIM-120 radar-guided air-to-air missiles (air-to-ground loadout)

Crew: One
Unit Cost: $142 million
Initial operating capability: December 2005
Inventory: Total force, 91

Source: USAF

Detailed background:

Source: wikipedia.org

The Lockheed Martin/Boeing F-22 Raptor is a fighter aircraft that uses stealth technology. It is primarily an air superiority fighter, but has multiple capabilities that include ground attack, electronic warfare, and signals intelligence roles.

The United States Air Force considers the F-22 a critical component of the U.S. strike force. The USAF states that the F-22 cannot be matched by any known or projected fighter aircraft. Air Chief Marshal Angus Houston, Chief of the Australian Defence Force, said in 2004 that the "F-22 will be the most outstanding fighter plane ever built."

Faced with a protracted and costly development period, the aircraft was variously designated F-22 and F/A-22 during the three years before formally entering US Air Force service in December 2005, as the F-22A. Lockheed Martin Aeronautics is the prime contractor and is responsible for the majority of the airframe, weapon systems and final assembly of the F-22. Program partner Boeing Integrated Defense Systems provides the wings, aft fuselage, avionics integration, and all of the pilot and maintenance training systems.

F-22 Raptor: Updated modeling and simulation tools, such as the Advanced Flight Propulsion Data Validation/Analysis System, will allow the F/A-22 Combined Test Force here to make further predictions when the Raptor begins to step out of the flight envelope during future testing. (U.S. Air Force photo by Judson Brohmer)F-22 Raptor: Updated modeling and simulation tools, such as the Advanced Flight Propulsion Data Validation/Analysis System, will allow the F/A-22 Combined Test Force here to make further predictions when the Raptor begins to step out of the flight envelope during future testing. (U.S. Air Force photo by Judson Brohmer)

Development

In 1981 the United States Air Force (USAF) developed a requirement for a new air superiority fighter, the Advanced Tactical Fighter (ATF), to replace the capability of the F-15 Eagle. ATF was a demonstration and validation program undertaken by the USAF to develop a next-generation air superiority fighter to counter emerging worldwide threats, including development and proliferation of Soviet-era Su-27 "Flanker"-class fighter aircraft. It was envisaged that the ATF would incorporate emerging technologies including advanced alloys and composite materials, advanced fly-by-wire flight control systems, higher power propulsion systems, and low-observable/stealth technology.

A request for proposal (RFP) was issued in July 1986, and two contractor teams, Lockheed/Boeing/General Dynamics and Northrop/McDonnell Douglas were selected in October 1986 to undertake a 50-month demonstration/validation phase, culminating in the flight test of two prototypes, the YF-22 and the YF-23.

On 23 April 1991 the USAF ended the design and test flight competition by announcing Lockheed's YF-22 as the winner. It was anticipated at the time that 650 aircraft would be ordered. Into production

The first production F-22 was delivered to Nellis Air Force Base, Nevada, on 14 January 2003 and "Dedicated Initial Operational Test and Evaluation" commenced on 27 October 2004. By 2004, 51 Raptors were in service.

The first crash of a production F-22 occurred during takeoff at Nellis Air Force Base on 20 December 2004, in which the pilot ejected safely prior to impact. The crash investigation revealed that a brief interruption in power during an engine shutdown prior to flight caused a malfunction in the flight-control system; consequently, the aircraft design was corrected to avoid the problem.

In August 2007, the United States Air Force signed a $5 billion, multi-year contract with Lockheed Martin that will extend production to 2011, and as of 2008, F-22 Raptors are being procured at the rate of 20 per year.

In a ceremony on 29 August 2007, Lockheed Martin reached its "100th F-22 Raptor" milestone, delivering aircraft 05-4100.

Procurement

The United States Air Force originally planned to order 750 ATFs, with production beginning in 1994; however, the 1990 Major Aircraft Review altered the plan to 648 aircraft beginning in 1996. The goal changed again in 1994, when it became 442 aircraft entering service in 2003 or 2004, but a 1997 Department of Defense report put the purchase at 339. In 2003, the Air Force said that the existing congressional cost cap limited the purchase to 277. By 2006, the Pentagon said it will buy 183 aircraft, which would save $15 billion but raise the cost of each aircraft, and this plan has been de facto approved by Congress in the form of a multi-year procurement plan, which still holds open the possibility for new orders past that point. The total cost of the program by 2006 was $62 billion.

In April 2006, the cost of the F-22A was assessed by the Government Accountability Office to be $361 million per aircraft. This cost reflects the F-22A total program cost, divided by the number of fighters the Air Force is programmed to buy; and which has so far invested $28 billion in the Raptor's research, development and testing. That money, referred to as a "sunk cost", is already spent and is separate from money used for future decision-making, including procuring a copy of the jet. The Unit Procurement Cost was estimated at $177.6 million in 2006 based on a production run of 181 airframes. This unit cost will decrease if total production is higher. This cost includes $3.233 billion already spent on research and development by 2006.

By the time all 183 fighters have been purchased, $34 billion will have been spent on actual procurement, resulting in a total program cost of $62 billion or about $339 million per aircraft. The incremental cost for one additional F-22 is around $138 million; decreasing with larger volumes. If the Air Force were to buy 100 more F-22s today, the cost of each one would be less and would continue to drop with additional aircraft purchases.

F-22 Raptor: Lockheed Martin/Boeing F-22 Raptor. Photo (CC)  James GordonF-22 Raptor: Lockheed Martin/Boeing F-22 Raptor. Photo (CC) James Gordon

The F-22 is not the most expensive aircraft aloft. That distinction likely belongs to the roughly $2.2 billion-per-unit B-2 Spirit, whose orders went from hundreds to a few dozen when the Cold War ended thus making the unit cost skyrocket, though the incremental cost was under US$1 billion. The F-22 uses fewer radar absorbent materials than the B-2 or F-117 Nighthawk, which is expected to translate into lower maintenance costs.

On 31 July 2007, Lockheed Martin received a multiyear contract for 60 F-22s worth a total of US$7.3 billion. The contract brings the number of F-22s on order to 183 and extends production through 2011.

During the two-month grounding of nearly 700 older F-15s in November and December 2007, some US Senators demanded that Deputy Secretary of Defense Gordon England release three government reports that support additional F-22 Raptors beyond the planned 183 jets. Forbes has reported that the USAF plans to extend the production of the F-22 past 2011. This is believed to be a response to the recent grounding of F-15A-D.

In January 2008, the Pentagon announced that it would ask Congress for funds to buy additional F-22s to replace other aircraft lost in combat, and proposed that $497 million that would have been used to shut down the F-22 line instead be used to buy four more F-22s, keeping open the production line beyond 2011 and providing the successor to President George W. Bush the option to buy even more F-22s. The funds earmarked for the line shutdown, however, were directed by Pentagon Comptroller Tina W. Jonas on 17 December 2007, to be used to fund repairs to the F-15 fleet caused by the worldwide grounding of that aircraft in November 2007. This diversion had the same effect of postponing the decision to shut down the F-22 production line until at least 2009. On September 24, 2008, US Congress passed a defense spending bill with funding for F-22 long lead items for future production. Proposed foreign purchases

Unlike many other tactical fighters, the opportunity for export is currently non-existent because the export sale of the F-22 is barred by federal law. However, regardless of restrictions, very few allies would even be considered for export sale because the F-22 is such a sensitive and expensive system. Most current customers for U.S. fighters are either acquiring earlier designs like the F-15 or F-16, or else are waiting to acquire the F-35, which contains much of the F-22's technology but is designed to be cheaper and more flexible. Independent writers have suggested that F-22 may not be offered for export in order not to damage the lucrative F-35 export program.

The Japanese government reportedly showed some interest in buying F-22As in its Replacement-Fighter program for its Air Self-Defense Force (JASDF). In such an event, it would most likely involve a "watered-down" export variant while still retaining most of its advanced avionics and stealth characteristics. However, such a proposal would still need approval from the Pentagon, State Department and Congress.

Israeli Air Force (IAF) chief procurement officer Brigadier-General Ze'ev Snir said that, "The IAF would be happy to equip itself with 24 F-22s, but the problem at this time is the US refusal to sell the aircraft, and its $200 million price tag."

Some Australian politicians and defense commentators have proposed that Australia purchase F-22s instead of the F-35. In 2006, the Australian Labor Party supported this proposal on the grounds that the F-22 is a proven, highly capable aircraft, while the F-35 is still under development. However, the Howard government ruled out purchase of the F-22, on the grounds that it is unlikely to be released for export, and does not have sufficient ground/maritime strike capacity. This assessment was supported by the Australian Strategic Policy Institute, which claimed that the F-22 "has insufficient multi-role capability at too high a price." The ASPI analysis was, however, criticized by Air Power Australia.

The US Congress upheld the ban on F-22 Raptor foreign sales during a joint conference on 27 September 2006. After talks in Washington in December 2006, the US DoD reported the F-22 would not be available for foreign sale.

Following the victory of the Australian Labor Party in the 2007 national election, the new government ordered a review of plans to procure the F-35 and F/A-18E/F Super Hornet. This review will include an evaluation of the F-22's suitability for Australia; moreover, Defence Minister Joel Fitzgibbon has stated: "I intend to pursue American politicians for access to the Raptor". In February 2008, U.S. Defense Secretary Robert Gates said he had no objection to sale of the Raptor to Australia, but Congress would have to change the law.

Characteristics

The F-22 is a fifth generation fighter that is considered a fourth-generation stealth aircraft by the USAF. Its dual afterburning Pratt & Whitney F119-PW-100 turbofans incorporate thrust vectoring, but in the pitch axis only, with a range of ±20 degrees. The maximum thrust is classified, though most sources place it at about 35,000 lbf (156 kN) per engine.

F-22 Raptor: An F-22 Raptor from Langley Air Force Base, Va., performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. The F-22 is the Air Force's newest fighter aircraft. Its combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Justin D. Pyle)F-22 Raptor: An F-22 Raptor from Langley Air Force Base, Va., performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. The F-22 is the Air Force's newest fighter aircraft. Its combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Justin D. Pyle)

Maximum speed, without external weapons, is estimated to be Mach 1.82 in supercruise mode; as demonstrated by General John P. Jumper, former US Air Force Chief of Staff, when his Raptor exceeded Mach 1.7 without afterburners on 13 January 2005. With afterburners, it is "greater than Mach 2.0" (1,317 mph, 2,120 km/h), according to Lockheed Martin; however, the Raptor can easily exceed its design speed limits, particularly at low altitudes, with max-speed alerts to help prevent the pilot from exceeding them. Former Lockheed Raptor chief test pilot Paul Metz stated that the Raptor has a fixed inlet; but while the absence of variable intake ramps may theoretically make speeds greater than Mach 2.0 unreachable, there is no evidence to prove this. Such ramps would be used to prevent engine surge resulting in a compressor stall, but the intake itself may be designed to prevent this. Metz has also stated that the F-22 has a top speed greater than 1,600 mph (Mach 2.42) and its climb rate is faster than the F-15 Eagle due to advances in engine technology, despite the F-15's thrust-to-weight ratio of about 1.2:1, with the F-22 having a ratio closer to 1:1. The US Air Force claims that the F-22A cannot be matched by any known or projected fighter.

The true top-speed of the F-22 is largely unknown to the general public, as engine power is only one factor. The ability of the airframe to withstand the stress and heat from friction is a further, key factor, especially in an aircraft using as many polymers as the F-22. However, while some aircraft are faster on paper, the internal carriage of its standard combat load allows the aircraft to reach comparatively higher performance with a heavy load over other modern aircraft due to its lack of drag from external stores. It is one of only a handful of aircraft that can sustain supersonic flight without the use of afterburner augmented thrust (and its associated high fuel usage). This ability is called supercruise.

The F-22 is highly maneuverable, at both supersonic and subsonic speeds. It is extremely departure-resistant, enabling it to remain controllable at extreme pilot inputs. The F-22's thrust vectoring nozzles allow the aircraft to turn tightly, and perform extremely high alpha (angle of attack) maneuvers such as the Herbst maneuver (or J-turn), Pugachev's Cobra, and the Kulbit, though the J-Turn is more useful in combat. The F-22 is also capable of maintaining a constant angle of attack of over 60°, yet still having some control of roll. During June 2006 exercises in Alaska, F-22 pilots demonstrated that cruise altitude has a significant effect on combat performance, and routinely attributed their altitude advantage as a major factor in achieving an unblemished kill ratio against other US fighters and 4th/4.5th generation fighters. Avionics

The F-22's avionics include BAE Systems E&IS radar warning receiver (RWR) AN/ALR-94, and the Northrop Grumman AN/APG-77 Active Electronically Scanned Array (AESA) radar. The AN/APG-77 has both long-range target acquisition and low probability of interception of its own signals by enemy aircraft.

The AN/ALR-94 is a passive receiver system capable of detecting the radar signals in the environment. Composed of more than 30 antennas smoothly blended into the wings and fuselage, it is described by the former head of the F-22 program at Lockheed Martin Tom Burbage as "the most technically complex piece of equipment on the aircraft." With greater range (250+ nmi) than the radar, it enables the F-22 to limit its own radar emission which might otherwise compromise its stealth. As the target approaches, AN/ALR-94 can cue the AN/APG-77 radar to keep track of its motion with a narrow beam, which can be as focused as 2° by 2° in azimuth and elevation.

The AN/APG-77 AESA radar, designed for air-superiority and strike operations, features a low-observable, active-aperture, electronically-scanned array that can track multiple targets in all kinds of weather. The AN/APG-77 changes frequencies more than 1,000 times per second to reduce the chance of being intercepted. The radar can also focus its emissions to overload enemy sensors, giving the aircraft an electronic-attack capability.

The radar’s information is processed by two Raytheon Common Integrated Processor (CIP)s. Each CIP operates at 10.5 billion instructions per second and has 300 megabytes of memory. Information can be gathered from the radar and other onboard and offboard systems, filtered by the CIP, and offered in easy-to-digest ways on several cockpit displays, enabling the pilot to remain on top of complicated situations. The Raptor’s software is composed of over 1.7 million lines of code, most of which concerns processing data from the radar. The radar has an estimated range of 125-150 miles, though planned upgrades will allow a range of 250 miles (400 km) or more in narrow beams.

The F-22 has several unique functions for an aircraft of its size and role. For instance, it has threat detection and identification capability along the lines of that available on the RC-135 Rivet Joint. While the F-22's equipment isn't as powerful or sophisticated, because of its stealth, it can be typically hundreds of miles closer to the battlefield, which often compensates for the reduced capability.

The F-22 is capable of functioning as a "mini-AWACS." Though reduced in capability compared to dedicated airframes such as the E-3 Sentry, as with its threat identification capability, the F-22's forward presence is often of benefit. The system allows the F-22 to designate targets for cooperating F-15s and F-16s, and even determine if two friendly aircraft are targeting the same enemy aircraft, thus enabling one of them to choose a different target. It is often able to identify targets hundreds of times faster than accompanying dedicated AWACS.

The F-22's low probability of intercept radar is being given a high-bandwidth data transmission capability, to allow it to be used in a "broadband" role to permit high-speed relaying of data between friendly transmitters and receivers in the area. The F-22 can already pass data to other F-22s, resulting in considerably reduced radio "chatter."

The IEEE-1394B data bus, developed for the F-22, was derived from the commercial IEEE-1394 "FireWire" bus system, often used on personal computers. The same data bus is employed by the subsequent F-35 Lightning II fighter. Cockpit

The F-22 cockpit is a glass cockpit design without any traditional analog flight instruments and represents a marked improvement on the cockpit design of previous advanced aircraft. The leading features of the F-22 cockpit include simple and rapid start-up, highly developed HMI, light helmet, large anthropometric accommodation and highly integrated warning system. Other main features include the large single-piece canopy and improved life support systems. Airframe

F-22 Raptor: An F/A-22 Raptor climbs on a test mission here. The F/A-22 combines stealth, supercruise, maneuverability and many other features enabling a first look, first shot, first kill capability that will provide continued air dominance for generations to come. (U.S. Air Force photo)F-22 Raptor: An F/A-22 Raptor climbs on a test mission here. The F/A-22 combines stealth, supercruise, maneuverability and many other features enabling a first look, first shot, first kill capability that will provide continued air dominance for generations to come. (U.S. Air Force photo)

Several small design changes were made from the YF-22A prototype to the production F-22A. The swept-back angle on the wing's leading edge was decreased from 48 degrees to 42 degrees, while the vertical stabilizer area was decreased 20%. To improve pilot visibility, the canopy was moved forward 7 inches (178 mm) and the engine intakes were moved rearward 14 inches (356 mm). The shape of the wing and stabilator trailing edges was refined to improve aerodynamics, strength, and stealth characteristics. Armament

The Raptor is designed to carry air-to-air missiles in internal bays, both to avoid disrupting its stealth capability and to reduce drag resulting in higher top speeds and longer combat ranges. Launching missiles requires opening the weapons bay doors for less than a second, while the missiles are pushed clear of the airframe by hydraulic arms. The aircraft can also carry bombs compatible with the Joint Direct Attack Munition (JDAM) guidance system, and the new Small-Diameter Bomb (SDB). The Raptor carries an M61A2 Vulcan 20 mm rotary cannon, also with a trap door, in the right wing root. The M61A2 is a last ditch weapon, and carries only 480 rounds; enough ammunition for approximately five seconds of sustained fire. Despite this, the F-22 has been able to use its gun in dogfighting without being detected, which can be necessary when missiles are depleted.

The Raptor's very high sustained cruise speed and operational altitude add significantly to the effective range of both air-to-air and air-to-ground munitions. These factors may be the rationale behind the USAF's decision not to pursue long-range, high-energy air-to-air missiles such as the MBDA Meteor. However, the USAF plans to procure the AIM-120D AMRAAM, which will have a significant increase in range compared to the AIM-120C. The Raptor launch platform provides additional energy to the missile which helps improve the range of air-to-ground ordnance. While specific figures remain classified, it is expected that JDAMs employed by F-22s will have twice or more the effective range of munitions dropped by legacy platforms. In testing, a Raptor dropped a 1,000 lb (450 kg) JDAM from 50,000 feet (15,000 m), while cruising at Mach 1.5, striking a moving target 24 miles (39 km) away. The SDB, as employed from the F-22, should see even greater increases in effective range, due to the improved lift to drag ratio of these weapons.

While in its air-superiority configuration, the F-22 carries its weapons internally, though it is not limited to this option. The wings are capable of supporting four detachable hardpoints. Each hardpoint is theoretically capable of handling 5,000 lb (2,300 kg) of ordnance. However, use of external stores greatly compromises the F-22's stealth, and has a detrimental effect on maneuverability, speed, and range. As many as two of these hardpoints are "plumbed", allowing the usage of external fuel tanks. The hardpoints are detachable in flight allowing the fighter to regain its stealth once these external stores are exhausted. Currently, there is research being conducted to develop a stealth ordnance pod and hardpoints for it. Such a pod would comprise a stealth shape and carry its weapons internally, then would split open when launching a missile or dropping a bomb. Both the pod and hardpoints could be detached when no longer needed. This system would allow the F-22 to carry its maximum ordnance load while remaining stealthy, albeit at a loss of maneuverability.

Stealth

Although several recent Western fighter aircraft are less detectable on radar than previous designs using techniques such as radar absorbent material-coated S-shaped intake ducts that shield the compressor fan from reflecting radar waves, the F-22 design placed a much higher degree of importance on low observance throughout the entire spectrum of sensors including radar signature, visual, infrared, acoustic, and radio frequency.

The stealth of the F-22 is due to a combination of factors, including the overall shape of the aircraft, the use of radar absorbent material (RAM), and attention to detail such as hinges and pilot helmets that could provide a radar return. However, reduced radar cross section is only one of five facets that designers addressed to create a stealth design in the F-22. The F-22 has also been designed to disguise its infrared emissions to make it harder to detect by infrared homing ("heat seeking") surface-to-air or air-to-air missiles. Designers also made the aircraft less visible to the naked eye, and controlled radio and noise emissions. The Raptor has an under bay carrier made for hiding heat from missile threats, like surface-to-air missiles.

The F-22 apparently relies less on maintenance-intensive radar absorbent material and coatings than previous stealth designs like the F-117. These materials caused deployment problems due to their susceptibility to adverse weather conditions. Unlike the B-2, which requires climate-controlled hangers, the F-22 can undergo repairs on the flight line or in a normal hangar. Furthermore, the F-22 has a warning system (called "Signature Assessment System" or "SAS") which presents warning indicators when routine wear-and-tear have degraded the aircraft's radar signature to the point of requiring more substantial repairs. The exact radar cross section of the F-22 remains classified.

External lighting

The aircraft has integral position and anti-collision lighting (including strobes) on the wings, compatible with stealth requirements, supplied by Goodrich Corporation. The low voltage electroluminescent formation lights are located on the aircraft at critical positions for night flight operations (on both sides of the forward fuselage under the chin, on the tip of the upper left and right wings, and on the outside of both vertical stabilizers). There are similar air refueling lights on the butterfly doors that cover the air refueling receptacle.

Operational history

Intended to be the leading American advanced tactical fighter in the early part of the 21st century, the Raptor is an expensive fighter with an incremental cost of about US$138 million per unit. The number of aircraft to be built has dropped to 183, down from the initial requirement of 750. Part of the reason for the decrease in the requirement is that the F-35 Lightning II uses much of the technology used on the F-22, but at a much more affordable price. To a large extent the cost of these technologies is lower for the F-35 only because they have already been developed for the F-22.

F-22 Raptor: Senior Airman William Rotroff taxies in a F-22 Raptor during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22 will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Airman Rotroff is a tactical aircraft maintenance specialist with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)F-22 Raptor: Senior Airman William Rotroff taxies in a F-22 Raptor during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22 will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Airman Rotroff is a tactical aircraft maintenance specialist with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)

YF-22 "Lightning II"

The prototype YF-22 won a fly-off competition against the Northrop/McDonnell-Douglas YF-23 for the Advanced Tactical Fighter contract. In April 1992 during flight testing after contract award, test pilot Tom Morgenfeld escaped without injury when the first YF-22 prototype that he was flying crashed while landing at Edwards Air Force Base in California. The cause of the crash was found to be a flight control software error that failed to prevent a pilot-induced oscillation.

The YF-22 was a developmental aircraft that led to the F-22; however, there are significant differences between the YF-22 and the F-22. Relocation of cockpit, structural changes, and many other smaller changes exist between the two types. The two are sometimes confused in pictures, often at angles where it is difficult to see certain features. For example, there are some F-22 with pitot booms which some think are only found on the YF-22.

The YF-22 was originally given the unofficial name "Lightning II", after the World War II fighter P-38, by Lockheed, which persisted until the mid-1990s when the USAF officially named the aircraft "Raptor". For a short while, the aircraft was also dubbed "SuperStar" and "Rapier". The F-35 later received the Lightning II name on 7 July 2006. F-22 Raptor to F/A-22 and back again

The production model was formally named F-22 "Raptor" when the first production-representative aircraft was unveiled on 9 April 1997 at Lockheed-Georgia Co., Marietta, Georgia. First flight occurred on 7 September 1997.

In September 2002, Air Force leaders changed the Raptor’s designation to F/A-22. The new designation, which mimicked that of the Navy’s F/A-18 Hornet, was intended to highlight plans to give the Raptor a ground-attack capability amid intense debate over the relevance of the expensive air-superiority jet. This was later changed back to simply F-22 on 12 December 2005. On 15 December 2005, the F-22A entered service. Testing

Testing of the F-22 began in 1997 and has been curtailed to save program costs, but risks hiding flaws until a point at which fixing flaws becomes unaffordable. The U.S. General Accounting Office cautioned, "Moreover, engine and stealthiness problems already disclosed by the DoD, and the potential for avionics and software problems, underscore the need to demonstrate the weapon system’s performance through flight testing before significant commitments are made to production."

Raptor 4001 was retired and sent to Wright-Patterson AFB to be fired at for testing the fighter's survivability. Usable parts of 4001 would be used to make a new F-22. Another engineering and manufacturing development (EMD) F-22 was also retired and likely to be sent to be rebuilt. A testing aircraft was converted to a maintenance trainer at Tyndall AFB.

On 3 May 2006, a report was released detailing a problem with a forward titanium boom on the aircraft that was not properly heat treated. Officials are still investigating the problem which was caused by the boom portion not being subjected to high temperatures in the factory for long enough, causing the boom to be less ductile than specified and potentially shortening the lives of the first 80 or so F-22s. Work is underway to restore them to full life expectancy.

The F-22 fleet underwent modifications at Hill AFB, and at Edwards AFB near Palmdale, California.

F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the two pictured here, throughout the current contractual agreement.(U.S. Air Force photo/Tech. Sgt. Ben Bloker)F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the two pictured here, throughout the current contractual agreement.(U.S. Air Force photo/Tech. Sgt. Ben Bloker)

Recent developments

In 2006, the Raptor's development team, composed of Lockheed Martin and over 1,000 other companies, plus the United States Air Force, won the Collier Trophy, American aviation's most prestigious award. The U.S Air Force will acquire F-22s that are to be divided among seven active duty combat squadrons, and jointly flown and maintained by three integrated Reserve and Air National Guard squadrons.

During Exercise Northern Edge in Alaska in June 2006, 12 F-22s of the 94th FS downed 108 adversaries with no losses in simulated combat exercises. In two weeks of exercises, the Raptor-led Blue Force amassed 241 kills against two losses in air-to-air combat, and neither Blue Force loss was an F-22.

This was followed with the Raptor's first participation in a Red Flag exercise. 14 F-22s of the 94th FS supported attacking Blue Force strike packages as well as engaging in close air support sorties themselves in Red Flag 07-1 between 3 February and 16 February 2007. Against designed superior numbers of Red Force Aggressor F-15s and F-16s, it established air dominance using eight aircraft during day missions and six at night, reportedly defeating the Aggressors quickly and efficiently, even though the exercise rules of engagement allowed for four to five Red Force regenerations of losses but none to Blue Force. Further, no sorties were missed because of maintenance or other failures, and only one Raptor was adjudged lost against the virtual annihilation of the defending force. When their ordnance was expended, the F-22s remained in the exercise area providing electronic surveillance to the Blue Forces.

While attempting its first overseas deployment to the Kadena Air Base in Okinawa, Japan, on 11 February 2007, a group of six Raptors flying from Hickam AFB experienced multiple computer crashes coincident with their crossing of the 180th meridian of longitude (the International Date Line). The computer failures included at least navigation (completely lost) and communication. The fighters were able to return to Hawaii by following their tankers in good weather. The error was fixed within 48 hours and the F-22s continued their journey to Kadena.

The National Museum of the Air Force, on 30 April 2007, announced that EMD Raptor 91-4003 would be put on display later in 2007 in the space being occupied by the YF-22. The Museum publicly unveiled its Raptor 91-4003 display on 18 January 2008.

In 2007, tests carried out by Northrop Grumman, Lockheed Martin, and L-3 Communications enabled the AESA system of a Raptor to act like a WiFi access point, able to transmit data at 548 Megabit/sec and receive at Gigabit speed; far faster than the current Link 16 system used by US and allied aircraft, which transfers data at just over 1 Megabit/sec.

F-22A Raptors of the 90th Fighter Squadron performed their first intercept of two Russian Tu-95MS 'Bear-H' bombers in Alaska, on 22 November 2007. This was the first time that F-22s had been called to support a NORAD mission.

On 12 December 2007, Gen. John D.W. Corley, commander of Air Combat Command, officially declared the F-22s of the integrated active duty 1st Fighter Wing and Air National Guard 192nd FW fully operational, three years after the first Raptor arrived at Langley Air Force Base. This was followed from 13 April to 19 April 2008 by an Operational Readiness Inspection (ORI) of the integrated wing in which it received an "excellent" rating in all categories while scoring a simulated kill-ratio of 221-0. The first pair of Raptors assigned to the 49th Fighter Wing became operational at Holloman Air Force Base, New Mexico, on 2 June.

In July 2008, F-22s were to be showcased in the 2008 Royal International Air Tattoo air show at Fairford, but did not perform after the show was canceled due to bad weather. An F-22, however, performed on the first day of the Farnborough Airshow on 14 July 2008.

On August 28, 2008, an F-22 from the 411th Flight Test Squadron performed in the first ever air-to-air refueling of an aircraft using synthetic jet fuel. The test was a part of the wider USAF effort to qualify all of its aircraft to use the fuel, a 50/50 mix of JP-8 and a Fischer-Tropsch process-produced, natural gas-based fuel. For the tests, no modifications were made to the F-22 nor the KC-135 Stratotanker which performed the refueling. Variants

Under the Navalized Advanced Tactical Fighter (NATF) program, a carrier-borne variant of the F-22 with swing-wings was proposed for the U.S. Navy to replace the F-14 Tomcat, though the program was subsequently cancelled in 1993. A two-seat F-22B trainer variant was planned, but was cut in 1996 to save development costs.

Another more recent proposal is the FB-22, which would be used as a deep strike bomber for the USAF, but there has yet to be any word on whether the USAF plans further development of the program. Also, the X-44 MANTA, short for multi-axis, no-tail aircraft, was a planned experimental aircraft based on the F-22 with enhanced thrust vectoring controls and no aerodynamic backup (i.e. the aircraft is controlled solely by thrust vectoring, without rudders, ailerons, or elevators). Funding for the program was halted in 2000.

Armament

* Guns: 1× 20 mm (0.787 in) M61A2 Vulcan gatling gun in starboard wing root, 480 rounds
* Air to air loadout:
o 6× AIM-120 AMRAAM
o 2× AIM-9 Sidewinder
* Air to ground loadout:
o 2× AIM-120 AMRAAM and
o 2× AIM-9 Sidewinder and one of the following:
+ 2× 1,000 lb (450 kg) JDAM or
+ 2× Wind Corrected Munitions Dispensers (WCMDs) or
+ 8× 250 lb (110 kg) GBU-39 Small Diameter Bombs

* Additionally, four external hardpoints can be fitted to carry weapons or fuel tanks, each with a capacity of about 5,000 lb (2268 kg).

* The F-22 is currently not compatible with the AIM-9X Sidewinder, but Lockheed Martin stated that the AIM-9X will be part of a future modification to the F-22.

Avionics

* RWR (Radar warning receiver): 250 nmi (463 km) or more
* Radar: 125-150 miles (200-240 km) against 1 m² targets (estimated range)

More photos:

F-22 Raptor: The first of 12 F-22 Raptors lands for a brief layover Feb. 7 at Hickam Air Force Base, Hawaii. The F-22s and more than 250 Airmen from the 27th Fighter Squadron at Langley Air Force Base, Va., are bound for Kadena Air Base, Japan, for the aircaft's first overseas operational deployment. (U.S. Air Force photo/Tech. Sgt. Shane A. Cuomo)F-22 Raptor: The first of 12 F-22 Raptors lands for a brief layover Feb. 7 at Hickam Air Force Base, Hawaii. The F-22s and more than 250 Airmen from the 27th Fighter Squadron at Langley Air Force Base, Va., are bound for Kadena Air Base, Japan, for the aircaft's first overseas operational deployment. (U.S. Air Force photo/Tech. Sgt. Shane A. Cuomo)

F-22 Raptor: The first of 12 F-22 Raptors lands for a brief layover Feb. 7 at Hickam Air Force Base, Hawaii. The F-22s and more than 250 Airmen from the 27th Fighter Squadron at Langley Air Force Base, Va., are bound for Kadena Air Base, Japan, for the aircaft's first overseas operational deployment. (U.S. Air Force photo/Tech. Sgt. Shane A. Cuomo)F-22 Raptor: The first of 12 F-22 Raptors lands for a brief layover Feb. 7 at Hickam Air Force Base, Hawaii. The F-22s and more than 250 Airmen from the 27th Fighter Squadron at Langley Air Force Base, Va., are bound for Kadena Air Base, Japan, for the aircaft's first overseas operational deployment. (U.S. Air Force photo/Tech. Sgt. Shane A. Cuomo)

F-22 Raptor: An F-22 Raptor from 94th Fighter Squadron at Langley Air Force Base, Va., sits on the flightline during Red Flag Feb. 6 at Nellis AFB, Nev. The exercise sharpens aircrews' warfighting skills in realistic combat situations. The aircraft are flying missions day and night at the nearby Nevada Test and Training Range where they simulate an air war. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in the exercise. This is the first deployment to Red Flag for the 94th FS with F-22s. (U.S. Air Force photo/Master Sgt. Kevin J. Gruenwald)F-22 Raptor: An F-22 Raptor from 94th Fighter Squadron at Langley Air Force Base, Va., sits on the flightline during Red Flag Feb. 6 at Nellis AFB, Nev. The exercise sharpens aircrews' warfighting skills in realistic combat situations. The aircraft are flying missions day and night at the nearby Nevada Test and Training Range where they simulate an air war. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in the exercise. This is the first deployment to Red Flag for the 94th FS with F-22s. (U.S. Air Force photo/Master Sgt. Kevin J. Gruenwald)

F-22 Raptor: An F-22 Raptor after a Red Flag mission Feb. 12 at Nellis Air Force Base, Nev. All three of the Air Force's stealth aircraft models -- the B-2 Spirit, F-117 Nighthawk and F-22 -- are taking part in Red Flag, which sharpens aircrews' warfighting skills in realistic combat situations. Crews are flying missions during the day and night to the nearby Nevada Test and Training Range where they take part in highly realistic aerial combat. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in this Red Flag. (U.S. Air Force photo/Mike Estrada)F-22 Raptor: An F-22 Raptor after a Red Flag mission Feb. 12 at Nellis Air Force Base, Nev. All three of the Air Force's stealth aircraft models -- the B-2 Spirit, F-117 Nighthawk and F-22 -- are taking part in Red Flag, which sharpens aircrews' warfighting skills in realistic combat situations. Crews are flying missions during the day and night to the nearby Nevada Test and Training Range where they take part in highly realistic aerial combat. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in this Red Flag. (U.S. Air Force photo/Mike Estrada)

F-22 Raptor: An F-22 Raptor flies off after being refueled by a KC-135 Stratotanker during the Red Flag exercise Feb 7 at Nellis Air Force Base, Nev. The two KC-135 Stratotankers from the 319th Air Refueling Wing at Grand Forks Air Force Base, N.D., make up the lead tanker unit during the exercise. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots for conflicts. (U.S. Air Force photo/1st Lt. Randi Norton)F-22 Raptor: An F-22 Raptor flies off after being refueled by a KC-135 Stratotanker during the Red Flag exercise Feb 7 at Nellis Air Force Base, Nev. The two KC-135 Stratotankers from the 319th Air Refueling Wing at Grand Forks Air Force Base, N.D., make up the lead tanker unit during the exercise. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots for conflicts. (U.S. Air Force photo/1st Lt. Randi Norton)

F-22 Raptor: An F-22 Raptor flys off the left wing of a KC-135 Stratotanker during the Red Flag Exercise Feb 7. Two KC-135 Stratotankers from the 319th Air Refueling Wing at Grand Forks Air Force Base make up the lead tanker unit during the exercise. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots for conflicts. (U.S. Air Force photo/1st Lt. Randi Norton)F-22 Raptor: An F-22 Raptor flys off the left wing of a KC-135 Stratotanker during the Red Flag Exercise Feb 7. Two KC-135 Stratotankers from the 319th Air Refueling Wing at Grand Forks Air Force Base make up the lead tanker unit during the exercise. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots for conflicts. (U.S. Air Force photo/1st Lt. Randi Norton)

F-22 Raptor: An F-22 Raptor from the 1st Fighter Wing at Langley Air Force Base, Va., tops off from a KC-135 Stratotanker Feb. 7 during the Red Flag Exercise at Nellis AFB, Nev. Two KC-135s from the 319th Air Refueling Wing at Grand Forks Air Force Base, N.D., make up the lead tanker unit during the exercise. (U.S. Air Force photo/1st Lt. Randi Norton)F-22 Raptor: An F-22 Raptor from the 1st Fighter Wing at Langley Air Force Base, Va., tops off from a KC-135 Stratotanker Feb. 7 during the Red Flag Exercise at Nellis AFB, Nev. Two KC-135s from the 319th Air Refueling Wing at Grand Forks Air Force Base, N.D., make up the lead tanker unit during the exercise. (U.S. Air Force photo/1st Lt. Randi Norton)

F-22 Raptor: Capt. Raymond Thaler exits an F-22 Raptor after a sortie during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22s will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Captain Thaler is an F-22 pilot with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)F-22 Raptor: Capt. Raymond Thaler exits an F-22 Raptor after a sortie during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22s will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Captain Thaler is an F-22 pilot with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)

F-22 Raptor: Senior Airman William Rotroff taxies in a F-22 Raptor during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22 will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Airman Rotroff is a tactical aircraft maintenance specialist with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)F-22 Raptor: Senior Airman William Rotroff taxies in a F-22 Raptor during Red Flag 07-02 Feb. 6 at Nellis Air Force Base, Nev. Red Flag sharpens aircrews' warfighting skills in realistic combat situations. The F-22 will be flying missions during the day and night to the nearby Nevada Test and Training Range where they will simulate an air war. The Air Force and Navy, along with military forces from Australia and the United Kingdom, are participating in Red Flag. Airman Rotroff is a tactical aircraft maintenance specialist with the 94th Fighter Squadron at Langley Air Force Base, Va. This is the first deployment to Red Flag for the 94th FS with the F-22. (U.S. Air Force photo/Master. Sgt. Kevin J. Gruenwald)

F-22 Raptor: An F-22 Raptor lands at Kadena Air Base, Japan, Feb. 18, marking the aircraft's first overseas deployment. The jet is one of 12 along with more than 250 Airmen deployed from Langley Air Force Base, Va., to Kadena as part of an air expeditionary force rotation. (U.S. Air Force photo/Airman 1st Class Kelly Timney)F-22 Raptor: An F-22 Raptor lands at Kadena Air Base, Japan, Feb. 18, marking the aircraft's first overseas deployment. The jet is one of 12 along with more than 250 Airmen deployed from Langley Air Force Base, Va., to Kadena as part of an air expeditionary force rotation. (U.S. Air Force photo/Airman 1st Class Kelly Timney)

F-22 Raptor: An F-22 Raptor lands at Kadena Air Base, Japan, Feb. 18, marking the aircraft's first overseas deployment. The jet is one of 12 along with more than 250 Airmen deployed from Langley Air Force Base, Va., to Kadena as part of an air expeditionary force rotation. (U.S. Air Force photo/Airman 1st Class Ryan Ivacic)F-22 Raptor: An F-22 Raptor lands at Kadena Air Base, Japan, Feb. 18, marking the aircraft's first overseas deployment. The jet is one of 12 along with more than 250 Airmen deployed from Langley Air Force Base, Va., to Kadena as part of an air expeditionary force rotation. (U.S. Air Force photo/Airman 1st Class Ryan Ivacic)

F-22 Raptor: An F-22 Raptor participates in a Red Flag exercise Feb. 7 over Nevada. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots. (U.S. Air Force photo/1st Lt. Randi Norton)F-22 Raptor: An F-22 Raptor participates in a Red Flag exercise Feb. 7 over Nevada. Red Flag is an exercise designed to hone the warfighting skills of Air Force pilots. (U.S. Air Force photo/1st Lt. Randi Norton)

F-22 Raptor: F-22 Raptors from 94th Fighter Squadron at Langley Air Force Base, Va., are parked on the flightline during Red Flag Feb. 6 at Nellis AFB, Nev. The exercise sharpens aircrews' warfighting skills in realistic combat situations. The aircraft are flying missions day and night at the nearby Nevada Test and Training Range where they simulate an air war. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in the exercise. This is the first deployment to Red Flag for the 94th FS with F-22s. (U.S. Air Force photo/Master Sgt. Kevin J. Gruenwald)F-22 Raptor: F-22 Raptors from 94th Fighter Squadron at Langley Air Force Base, Va., are parked on the flightline during Red Flag Feb. 6 at Nellis AFB, Nev. The exercise sharpens aircrews' warfighting skills in realistic combat situations. The aircraft are flying missions day and night at the nearby Nevada Test and Training Range where they simulate an air war. The Air Force and Navy, along with Australia and the United Kingdom militaries, are participating in the exercise. This is the first deployment to Red Flag for the 94th FS with F-22s. (U.S. Air Force photo/Master Sgt. Kevin J. Gruenwald)

F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the two pictured here, throughout the current contractual agreement.(U.S. Air Force photo/Tech. Sgt. Ben Bloker)F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the two pictured here, throughout the current contractual agreement.(U.S. Air Force photo/Tech. Sgt. Ben Bloker)

F-22 Raptor: An F-22 Raptor receives fuel from a 909th Air Refueling Squadron KC-135 Stratotanker over Iwo Jima Feb. 18 while en route to Kadena Air Base, Okinawa, Japan. This was the first-ever overseas deployment of the F-22. F-22s from the 27th Fighter Squadron at Langley Air Force Base, Va., are deployed to Kadena AB as part of an Air Expeditionary Force rotation. (U.S. Air Force photo/Senior Airman Jeremy McGuffin)F-22 Raptor: An F-22 Raptor receives fuel from a 909th Air Refueling Squadron KC-135 Stratotanker over Iwo Jima Feb. 18 while en route to Kadena Air Base, Okinawa, Japan. This was the first-ever overseas deployment of the F-22. F-22s from the 27th Fighter Squadron at Langley Air Force Base, Va., are deployed to Kadena AB as part of an Air Expeditionary Force rotation. (U.S. Air Force photo/Senior Airman Jeremy McGuffin)

F-22 Raptor: An F-22 Raptor receives fuel from a 909th Air Refueling Squadron KC-135 Stratotanker over Iwo Jima Feb. 18 while en route to Kadena Air Base, Okinawa, Japan. This was the first-ever overseas deployment of the F-22. F-22s from the 27th Fighter Squadron at Langley Air Force Base, Va., are deployed to Kadena AB as part of an Air Expeditionary Force rotation. (U.S. Air Force photo/Senior Airman Jeremy McGuffin)F-22 Raptor: An F-22 Raptor receives fuel from a 909th Air Refueling Squadron KC-135 Stratotanker over Iwo Jima Feb. 18 while en route to Kadena Air Base, Okinawa, Japan. This was the first-ever overseas deployment of the F-22. F-22s from the 27th Fighter Squadron at Langley Air Force Base, Va., are deployed to Kadena AB as part of an Air Expeditionary Force rotation. (U.S. Air Force photo/Senior Airman Jeremy McGuffin)

F-22 Raptor top: The Virginia Air National Guard's 192nd Fighter Wing is the first Air National Guard unit in the country to fly the F-22 Raptor. The transition from the F-16 Fighting Falcon to the F-22 took place June 20. (U.S. Air Force photo)F-22 Raptor top: The Virginia Air National Guard's 192nd Fighter Wing is the first Air National Guard unit in the country to fly the F-22 Raptor. The transition from the F-16 Fighting Falcon to the F-22 took place June 20. (U.S. Air Force photo)

F-22 Raptor: An F-22A Raptor deployed to Kadena Air Base, Japan, trains with a U.S. Navy F/A-18 Super Hornet April 26, near Okinawa, Japan. The Raptors, from the 27th Fighter Squadron, at Langley Air Force Base, Va., deployed to Kadena in February. The Super Hornets, the Navy's newest frontline carrier-based fighter, are stationed at Naval Air Facility Atsugi, Japan. The training exercises focused on the next generation fighter capabilities between the two aircraft. (U.S. Navy photo/Christopher Hurst)F-22 Raptor: An F-22A Raptor deployed to Kadena Air Base, Japan, trains with a U.S. Navy F/A-18 Super Hornet April 26, near Okinawa, Japan. The Raptors, from the 27th Fighter Squadron, at Langley Air Force Base, Va., deployed to Kadena in February. The Super Hornets, the Navy's newest frontline carrier-based fighter, are stationed at Naval Air Facility Atsugi, Japan. The training exercises focused on the next generation fighter capabilities between the two aircraft. (U.S. Navy photo/Christopher Hurst)

F-22 Raptor: Maj. Max Moga an F-22 Raptor demonstration pilot leads six Thunderbird F-16 Fighting Falcons in formation over Langley Air Force Base, Va., during their practice day April 27 for the Airpower Over Hampton Roads air show scheduled April 28 and 29. (U.S. Air Force photograph/Tech. Sgt. Justin D. Pyle)F-22 Raptor: Maj. Max Moga an F-22 Raptor demonstration pilot leads six Thunderbird F-16 Fighting Falcons in formation over Langley Air Force Base, Va., during their practice day April 27 for the Airpower Over Hampton Roads air show scheduled April 28 and 29. (U.S. Air Force photograph/Tech. Sgt. Justin D. Pyle)

F-22 Raptor: An F-22 Raptor from Langley Air Force Base, Va., performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. The F-22 is the Air Force's newest fighter aircraft. Its combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Justin D. Pyle)F-22 Raptor: An F-22 Raptor from Langley Air Force Base, Va., performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. The F-22 is the Air Force's newest fighter aircraft. Its combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Justin D. Pyle)

F-22 Raptor: The F-22 Raptor performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. This F-22 is based at Langley Air Force Base, Va. The F-22 is the Air Force's newest fighter aircraft. The sophisticated F-22 aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. (U.S. Air Force photo/Tech Sgt Justin D. Pyle)F-22 Raptor: The F-22 Raptor performs for thousands during an April 1 air show at Naval Base Ventura County in Point Mugu, Calif. This F-22 is based at Langley Air Force Base, Va. The F-22 is the Air Force's newest fighter aircraft. The sophisticated F-22 aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. (U.S. Air Force photo/Tech Sgt Justin D. Pyle)

F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the one pictured here, throughout the current contractual agreement. (U.S. Air Force photo/Senior Airman Christina D. Ponte)F-22 Raptor: Working alongside the manufacturer, Lockheed Martin Aeronautics Company, during production of the F-22 Raptor, Air Combat Command's Raptor Acceptance Team is a geographically separated unit whose mission is to provide gaining units with "ready to fight" F-22s. It is estimated that the Air Force will save $119 million by pre-accepting the Raptor, such as the one pictured here, throughout the current contractual agreement. (U.S. Air Force photo/Senior Airman Christina D. Ponte)

F-22 Raptor: Two F-22 Raptors from Tyndall Air Force Base, Fla., participate in a recent training exercise. (U.S. Air Force photo/Senior Master Sgt. Thomas Meneguin)F-22 Raptor: Two F-22 Raptors from Tyndall Air Force Base, Fla., participate in a recent training exercise. (U.S. Air Force photo/Senior Master Sgt. Thomas Meneguin)

F-22 Raptor: An F-22 Raptor touches down at Elmendorf Air Force Base, Alaska, during a ceremony marking the aircraft's arrival Aug. 8. Elmendorf became the second operational base and the first Pacific Air Forces installation to receive the aircraft. The F-22 performs both air-to-air and air-to-ground missions allowing full realization of operational concepts vital to the 21st century Air Force. (U.S. Air Force photo/Airman 1st Class Laura Turner)F-22 Raptor: An F-22 Raptor touches down at Elmendorf Air Force Base, Alaska, during a ceremony marking the aircraft's arrival Aug. 8. Elmendorf became the second operational base and the first Pacific Air Forces installation to receive the aircraft. The F-22 performs both air-to-air and air-to-ground missions allowing full realization of operational concepts vital to the 21st century Air Force. (U.S. Air Force photo/Airman 1st Class Laura Turner)

F-22 Raptor: An F-22 Raptor heads out for an operational test mission. Air Force officials signed a production contract with Lockheed Martin Corp. to add 60 F-22s to the Air Force inventory by December 2011. The F-22 uses a combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, and represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Kevin J. Gruenwald)F-22 Raptor: An F-22 Raptor heads out for an operational test mission. Air Force officials signed a production contract with Lockheed Martin Corp. to add 60 F-22s to the Air Force inventory by December 2011. The F-22 uses a combination of stealth, supercruise, maneuverability, and integrated avionics, coupled with improved supportability, and represents an exponential leap in warfighting capabilities. (U.S. Air Force photo/Tech. Sgt. Kevin J. Gruenwald)

F-22 Raptor: Maj. Paul "Max" Moga, the first F-22A Raptor Demonstration Team Pilot, does a high-speed pass with his bomb bay doors open during an aircraft demonstration July 13. (U. S. Air Force photo/Staff Sgt. Samuel Rogers)F-22 Raptor: Maj. Paul "Max" Moga, the first F-22A Raptor Demonstration Team Pilot, does a high-speed pass with his bomb bay doors open during an aircraft demonstration July 13. (U. S. Air Force photo/Staff Sgt. Samuel Rogers)

F-22 Raptor: An F-22 Raptor makes a pass by a slowly setting Alaskan sun while pracing touch and goes at Elmendorf Air Force Base, Alaska, Sept. 17. (U.S. Air Force photo/Senior Airman Garrett Hothan)F-22 Raptor: An F-22 Raptor makes a pass by a slowly setting Alaskan sun while pracing touch and goes at Elmendorf Air Force Base, Alaska, Sept. 17. (U.S. Air Force photo/Senior Airman Garrett Hothan)

F-22 Raptor: F-22 Raptors fly in formation. Lockheed Martin delivered the 100th F-22 to the Air Force Aug. 29 in Marietta, Ga., and the latest aircraft will be assigned to the 90th Fighter Squadron at Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Staff Sgt. Samuel Rogers)F-22 Raptor: F-22 Raptors fly in formation. Lockheed Martin delivered the 100th F-22 to the Air Force Aug. 29 in Marietta, Ga., and the latest aircraft will be assigned to the 90th Fighter Squadron at Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Staff Sgt. Samuel Rogers)

F-22 Raptor: The F-22A Raptor takes off with afterburners during a demonstration Aug. 20 at Elmendorf Air Force Base, Alaska. The demo was the closing event of the 90th Fighter Squadron's 90th anniversary. The aircraft was flown by Maj. Paul Moga, the Air Force's sole F-22 demonstration pilot. He is assigned to the 1st Operations Group at Langley AFB, Va. (U.S. Air Force photo/Senior Airman Garrett Hothan)F-22 Raptor: The F-22A Raptor takes off with afterburners during a demonstration Aug. 20 at Elmendorf Air Force Base, Alaska. The demo was the closing event of the 90th Fighter Squadron's 90th anniversary. The aircraft was flown by Maj. Paul Moga, the Air Force's sole F-22 demonstration pilot. He is assigned to the 1st Operations Group at Langley AFB, Va. (U.S. Air Force photo/Senior Airman Garrett Hothan)

F-22 Raptor: An F-15E Strike Eagle and an F-22 Raptor fly over the coast of Prince William Sound, Alaska. Both aircraft are from Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Tech. Sgt Keith. Brown)F-22 Raptor: An F-15E Strike Eagle and an F-22 Raptor fly over the coast of Prince William Sound, Alaska. Both aircraft are from Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Tech. Sgt Keith. Brown)

F-22 Raptor: An F-22 Raptor lines up with a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)F-22 Raptor: An F-22 Raptor lines up with a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)

F-22 Raptor: An F-22 Raptor receives fuel from a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)F-22 Raptor: An F-22 Raptor receives fuel from a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)

F-22 Raptor: An F-22 Raptor flies Feb. 4 over Tyndall Air Force Base, Fla. Members of the 3rd Wing and Air Force Reserve Command's 477th Fighter Group from Elmendorf AFB, Alaska, combined for its first F-22 Raptor deployment to Tyndall AFB for Combat Archer. The 132 Reserve and active-duty Airmen and eight F-22s from Alaska were in Florida for Weapons System Evaluation Program training. Colonel Shower is the 90th Fighter Squadron commander and Sergeant Grantham is assigned to the 90th Aircraft Maintenance Unit. (U.S. Air Force photo/Scott Wolfe)F-22 Raptor: An F-22 Raptor flies Feb. 4 over Tyndall Air Force Base, Fla. Members of the 3rd Wing and Air Force Reserve Command's 477th Fighter Group from Elmendorf AFB, Alaska, combined for its first F-22 Raptor deployment to Tyndall AFB for Combat Archer. The 132 Reserve and active-duty Airmen and eight F-22s from Alaska were in Florida for Weapons System Evaluation Program training. Colonel Shower is the 90th Fighter Squadron commander and Sergeant Grantham is assigned to the 90th Aircraft Maintenance Unit. (U.S. Air Force photo/Scott Wolfe)

F-22 Raptor: A 90th Aircraft Maintenance Unit crew chief pulls the chocks from an F-22A Raptor laden with concrete bombs before departing for a training mission. For the first time at Elmendorf Air Force Base, Alaska, a mock bomb drop over Alaska, Jan. 16, provides integral training for both fighters and maintainers in preparation to declare its initial operation capabilities. (U.S. Air Force photo/Senior Airman Garrett Hothan)F-22 Raptor: A 90th Aircraft Maintenance Unit crew chief pulls the chocks from an F-22A Raptor laden with concrete bombs before departing for a training mission. For the first time at Elmendorf Air Force Base, Alaska, a mock bomb drop over Alaska, Jan. 16, provides integral training for both fighters and maintainers in preparation to declare its initial operation capabilities. (U.S. Air Force photo/Senior Airman Garrett Hothan)

F-22 Raptor: F-22 Raptors fly in formation. The Air Force's first four pilots to go directly to the F-22 without previous fighter experience are currently training at Luke Air Force Base, Ariz., in preparation for taking on the F-22. (U.S. Air Force photo/Staff Sgt. Samuel Rogers)F-22 Raptor: F-22 Raptors fly in formation. The Air Force's first four pilots to go directly to the F-22 without previous fighter experience are currently training at Luke Air Force Base, Ariz., in preparation for taking on the F-22. (U.S. Air Force photo/Staff Sgt. Samuel Rogers)

F-22 Raptor: Combining stealth, manueverability and supercruise with fully integrated systems, the F-22 Raptor has redefined "air dominance." (Courtesy photo)F-22 Raptor: Combining stealth, manueverability and supercruise with fully integrated systems, the F-22 Raptor has redefined "air dominance." (Courtesy photo)

F-22 Raptor: An F-22 Raptor lines up with a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)F-22 Raptor: An F-22 Raptor lines up with a KC-135 Stratotanker during an air-to-air refueling training mission Dec. 4 over Eglin Air Force Base, Fla. The F-22 is from the 43rd Fighter Squadron at Tyndall AFB, Fla. The KC-135 is from the 916th Air Refueling Wing, an Air Force Reserve wing located at Seymour Johnson AFB, N.C. (U.S. Air Force photo/Staff Sgt. Bryan Franks)

F-22 Raptor: An F-22 Raptor from the 3rd Wing at Elmendorf Air Force Base, Alaska, receives fuel from a KC-135 Stratotanker May 8 during Northern Edge 2008. The exercise, which began May 5 and concludes May 16, is designed to give Soldiers, Sailors, Airmen, Coast Guardsmen and Marines a chance to sharpen their skills prior to facing real-world combat scenarios. The KC-135 is part of the Alaska Air National Guard's 168th Air Refueling Wing from Eielson Air Force Base. (U.S. Air Force photo/Tech. Sgt. Mikal Canfield)F-22 Raptor: An F-22 Raptor from the 3rd Wing at Elmendorf Air Force Base, Alaska, receives fuel from a KC-135 Stratotanker May 8 during Northern Edge 2008. The exercise, which began May 5 and concludes May 16, is designed to give Soldiers, Sailors, Airmen, Coast Guardsmen and Marines a chance to sharpen their skills prior to facing real-world combat scenarios. The KC-135 is part of the Alaska Air National Guard's 168th Air Refueling Wing from Eielson Air Force Base. (U.S. Air Force photo/Tech. Sgt. Mikal Canfield)

F-22 Raptor: An F-22 Raptor from the 3rd Wing at Elmendorf Air Force Base, Alaska, rejoins the fight after refueling during Northern Edge 2008 May 8. Twelve Elmendorf AFB F-22s were part of the more than 120 aircraft participating in the largest military training exercise in Alaska. An Alaska Air National Guard KC-135 Stratotanker from Eielson Air Force Base, Alaska's, 168th Air Refueling Wing delivered the fuel during the refueling mission. (U.S. Air Force photo/Tech. Sgt. Mikal Canfield)F-22 Raptor: An F-22 Raptor from the 3rd Wing at Elmendorf Air Force Base, Alaska, rejoins the fight after refueling during Northern Edge 2008 May 8. Twelve Elmendorf AFB F-22s were part of the more than 120 aircraft participating in the largest military training exercise in Alaska. An Alaska Air National Guard KC-135 Stratotanker from Eielson Air Force Base, Alaska's, 168th Air Refueling Wing delivered the fuel during the refueling mission. (U.S. Air Force photo/Tech. Sgt. Mikal Canfield)

More photos: F-22 Raptor photo gallery

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