Lockheed Martin F-22 Raptor

Lockheed Martin F-22 Raptor

The Lockheed Martin/Boeing F-22 Raptor is a fighter aircraft that uses stealth technology. 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.

Lockheed Martin F-22 Raptor Profile :

National origin : United States
Manufacturer : Lockheed Martin Aeronautics, Boeing Integrated Defense Systems
Role : Stealth air superiority fighter
First flight :7 September 1997
Introduced : 15 December 2005
Status : In service
Developed from : Lockheed YF-22
Primary user : United States Air Force
Program cost : US$65 billion
Unit cost : US$150 million (flyaway cost for FY2009)

The Lockheed Martin F-22 Raptor is a fifth generation fighter that is considered a fourth-generation stealth aircraft by the USAF. The maximum thrust is classified, though most sources place it at about 35,000 lbf (156 kN) per engine. Maximum speed, without external weapons, is estimated to be Mach 1.82 in supercruise mode.

The Raptor has three internal weapons bays on the bottom and sides of the fuselage. It can carry six compressed carriage medium range missiles. In the center bay and one short range missile in each of the two side bays. Four of the medium range missiles can be replaced with two bombracks that can each carry one medium-size bomb or four small diameter bombs.

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.

F-22 Raptor Specifications

  • Crew: 1
  • Length: 62 ft 1 in (18.90 m)
  • Wingspan: 44 ft 6 in (13.56 m)
  • Height: 16 ft 8 in (5.08 m)
  • Wing area: 840 ft² (78.04 m²)
  • Airfoil: NACA 64A?05.92 root, NACA 64A?04.29 tip
  • Empty weight: 43,430 lb (19,700 kg)
  • Loaded weight: 64,460 lb (29,300 kg[N 6])
  • Max takeoff weight: 83,500 lb (38,000 kg)
  • Powerplant:2 × Pratt & Whitney F119-PW-100 Pitch Thrust vectoring turbofans
    • Dry thrust: 23,500 lb[234] (104 kN) each
    • Thrust with afterburner: 35,000+ lb (156+ kN) each
  • Fuel capacity: 18,000 lb (8,200 kg) internally, or 26,000 lb (11,900 kg) with two external fuel tanks

– Performance

  • Maximum speed:
    • At altitude: Mach 2.25 (1,500 mph, 2,410 km/h)
    • Supercruise: Mach 1.82 (1,220 mph, 1,963 km/h)
  • Range: >1,600 nmi (1,840 mi, 2,960 km) with 2 external fuel tanks
  • Combat radius: 410 nmi (471 mi, 759 km)
  • Ferry range: 2,000 mi (1,738 nmi, 3,219 km)
  • Service ceiling: 65,000 ft (19,812 m)
  • Wing loading: 77 lb/ft² (375 kg/m²)
  • Thrust/weight: 1.08 (1.26 with loaded weight & 50% fuel)
  • Maximum design g-load: -3.0/+9.0 g

– Armament

  • Guns: 1× 20 mm (0.787 in) M61A2 Vulcan 6-barreled gatling cannon in starboard wing root, 480 rounds
  • Air to air loadout:
    • 6× AIM-120 AMRAAM
    • 2× AIM-9 Sidewinder
  • Air to ground loadout:
    • 2× AIM-120 AMRAAM and
    • 2× AIM-9 Sidewinder for self-protection, and one of the following:
      • 2× 1,000 lb (450 kg) JDAM or
      • 8× 250 lb (110 kg) GBU-39 Small Diameter Bombs
  • Hardpoints: 4× under-wing pylon stations can be fitted to carry 600 US gallon drop tanks or weapons, each with a capacity of 5,000 lb (2,268 kg).

– Avionics

  • RWR (Radar warning receiver): 250 nmi (463 km) or more
  • Radar: 125–150 miles (200–240 km) against 1 m2 (11 sq ft) targets (estimated range)
  • Chemring MJU-39/40 flares for protection against IR missiles.

 

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