Iraq to Afghanistan
YF-22, YF-23
Page 3
The days of the individual design genius were over, long gone with the drafting table and slide rule. Collective computer analysis, debates, and decisions were continuous, although secure from outside observers. The first YF-22 drawings were formally released to the Fort Worth factory on April 1, 1988. Parts were flown from there and from Seattle to Burbank for assembly.
First flown on August 27, 1990, the rival Northrop YF-23 differed in having a flatter fuselage with intakes under the wings for the twin General Electric YF120 engine. The second YF-23 flew on October 26, but the YF-22 would be more successful..
General Electric YF-120-GE-100 vectored-thrust engines powered the first YF-22 flight from Palmdale on September 29, 1990, by Lockheed test pilot Dave Furguson, and the second YF-22 flew October 30 with Pratt & Whitney YF119-PW-100 engines. Supersonic cruise and inflight refueling were soon demonstrated, while AIM-9 and AIM-120 missiles were fired from the weapons bay.
Nine production F-22A Raptors ordered in August 1991, had numerous design modifications. The wing sweep was reduced from 48 to 42 degrees, the main wheels folded sideways, and the cockpit and inlets refined. Seven years after the prototype, the first F-22A flight was on September 7, 1997, at the Lockheed Georgia factory. Weapons arrangements include an M61A gun with 480 rounds, with a bay for six AIM-120C, or two such missiles and two 1,000-pound GBU-32 JDAM guided glider bombs.
How many F-22As will be produced in the 21st century depends on the annual budget. Costs and reliability have become as important as superior performance in selecting the American combat planes of the next decade.
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