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YF-23 PAV-2 Gray Ghost

The Northrop/McDonnell Douglas YF-23 is an American single-seat, twin-engine stealth fighter aircraft technology demonstrator designed for the United States Air Force (USAF). The design was a finalist in the USAF's Advanced Tactical Fighter (ATF) competition, battling the Lockheed YF-22 for a production contract. Two YF-23 prototypes were built, nicknamed "Black Widow II" and "Gray Ghost". In the 1980s, the USAF began looking for a replacement for its fighter aircraft, especially to counter the USSR's advanced Sukhoi Su-27 and Mikoyan MiG-29. Several companies submitted design proposals; the USAF selected proposals from Northrop and Lockheed. Northrop teamed with McDonnell Douglas to develop the YF-23, while Lockheed, Boeing and General Dynamics developed the YF-22. The YF-23 was stealthier and faster, but less agile than its competitor. After a four-year development and evaluation process, the YF-22 was announced the winner in 1991 and entered production as the Lockheed Martin F-22 Raptor. The U.S. Navy considered using the production version of the ATF as the basis for a replacement to the F-14, but these plans were later canceled. The two YF-23 prototypes were museum exhibits as of 2010.

Q : Activate auto pilot Left Shift : Activate auto throttle (keep aircraft speed 600㎞/h) ↑ / ↓ : Change the angle of attack during autopilot ← / → : Change direction of front gear V : Deploy flaps C : Air brake X/Z : Throttle T / G : Pitch F / H : Roll R / Y : Yaw E : Gear Alt : Switch cameras B : Open weapons bay 1 / 2 / 3 / 4 : Launching missile U : Gun Press "V" to deploy the flap, "Z" to increase thrust, "G" to rotate and take off!