F-22A Raptor, USAAdvanced Tactical Fighter Aircraft

Introduction• The Lockheed Martin F-22 Raptor is a single-seat, twin-engine, all

weather stealth tactical fighter aircraft developed for the United States Air Force (USAF).

• Lockheed Martin is the prime contractor and is responsible for the majority of the airframe,

weapon systems, and final assembly of the F-22, while program partner Boeing provides the

wings, aft fuselage, avionics integration, and training systems.

• The aircraft was variously designated F-22 and F/A-22 prior to formally entering service in

December 2005 as the F-22A.

• The Raptor's combination of stealth, aerodynamic performance, and situational awareness gives

the aircraft unprecedented air combat capabilities.

Design• The F-22 is powered by two Pratt and Whitney F119-100 engines.

• The F119-100 is a low bypass after-burning turbofan engine providing 156kN thrust.

• The TRW CNI communications, navigation and identification system includes an intra-flight data

link, joint tactical information distribution system (JTIDS) link and an identification friend or foe

(IFF) system.

• The aircraft has a Northrop Grumman (formerly Litton) LTN-100G laser gyroscope inertial

reference, a global positioning system and a microwave landing system.

Features• The F-22 construction use titanium for its high strength-to-weight ratio in critical stress areas, including

some of the bulkheads, and also for its heat-resistant qualities in the hot sections of the aircraft.

• The cockpit has six color liquid crystal displays. The Kaiser Electronics projection primary multifunction

display provides a plan view of the air and ground tactical situation including threat identity, threat

priority and tracking information.

• A BAE Systems head-up display (HUD) shows target status, weapon status, weapon envelopes and shoot

cues. A video camera records data on the HUD for post-mission analysis.

• The AN/APG-77 radar uses an active electronically scanned antenna array of 2,000 transmitter / receive

modules, which provides agility, low radar cross-section and wide bandwidth.

Weapons• A variant of the M61A2 Vulcan cannon is installed internally above the right air intake. The

General Dynamics link less ammunition handling system holds 480 rounds of 20mm ammunition

and feeds the gun at a rate of 100 rounds a second.

• The F-22 has four hard points on the wings, each rated to carry 2,270kg, which can carry AIM-

120A AMRAAM or external fuel tanks.

• The Raptor has three internal weapon bays. The main weapons bay can carry six AMRAAM AIM-

120C missiles or two AMRAAM and two 1,000lb GBU-32 joint direct attack munition (JDAM).

• The side bays can each be loaded with one Lockheed Martin / Raytheon AIM-9M or AIM-9X

Sidewinder all-aspect short-range air-to-air missile.

SpecificationsGeneral characteristics

• Length: 62 ft 1 in (18.92 m)

• Wingspan: 44 ft 6 in (13.56 m)

• Height: 16 ft 8 in (5.08 m)

• Wing area: 840 ft² (78.04 m²)

• Empty weight: 43,340 lb (19,700 kg)

• Loaded weight: 64,840 lb (29,410 kg)

• Max. takeoff weight: 83,500 lb (38,000 kg)

• Fuel capacity: 18,000 lb (8,200 kg) internally, or 26,000 lb (12,000 kg) with two external fuel tanks

Performance• Maximum speed:

• At altitude: Mach 2.25 (1,500 mph, 2,410 km/h) [estimated]

• Supercruise: Mach 1.82 (1,220 mph, 1,960 km/h)

• Range: >1,600 nmi (1,840 mi, 2,960 km) with 2 external fuel tanks

• Combat radius: 410 nmi (with 100 nmi in supercruise) (470 mi, 760 km)

• Ferry range: 2,000 mi (1,740 nmi, 3,220 km)

• Service ceiling: >65,000 ft (20,000 m)

References• http://en.wikipedia.org/wiki/Lockheed_Martin_F-

22_Raptor

• http://www.lockheedmartin.co.in/us/products/f22.html

• http://www.airforce-technology.com/projects/f22/

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