Lockheed YF-22 Raptor
In 1981 the Air Force developed a
requirement for an Advanced Tactical Fighter (ATF) as a new air
superiority fighter. It would take advantage of the new technologies in
fighter design on the horizon, including composite materials, lightweight
alloys, advanced flight control systems, higher power propulsion systems,
and stealth technology. Air Force leaders believed that these technologies
would make aircraft like the F-15 and F-16 obsolete by the early 21st
century. In 1985 the Air Force sent out formal requests for proposals to a
number of aircraft manufacturers and selected two industry teams, one led
by Lockheed, and the other by Northrop, to build the prototypes. The
Lockheed and Northrop teams each built two prototypes, one with General
Electric YF120 engines and one with Pratt & Whitney YF119 engines. The
Lockheed aircraft was designated YF-22 and the Northrop Aircraft was
YF-23. After extensive flight tests the Lockheed-Boeing-General Dynamics
team won the airframe competition and Pratt & Whitney the engine contract.
Span: 43 ft. 0 in.
Length: 64 ft. 2 in.
Height: 17 ft. 9 in.
Armament: One M61 A2 20-millimeter cannon; internal stations can
carry AIM-9 Sidewinder infrared (heat seeking) air-to-air missiles and
AIM-120 AMRAAM radar-guided air-to-air missiles or 1,000-pound Joint
Direct Attack Munitions (JDAM)
Engines: Two Pratt & Whitney YF119-PW-100L engines. (The museum
aircraft originally flew with General Electric YF-120-GE-100 engines.)
Maximum speed: Mach 2+
Service Ceiling: Above 50,000 ft.