Don't know what a yf is but a yj top will not fit a tj.
Yf
The YF-23 Black Widow II is one of two prototypes built of the YF-23 by Northrop and McDonnell Douglass the other called YF-23 is called the Gray Ghost. They both were built but the project was canceled. It was entered in the USAF Advanced Tactial Fighter competition losing to the YF-22 later known as the Lockheed F-22 Raptor.
The actual answer would be the 1960's era YF- 12 A, the SR-71's sister. The YF-12 A was intended to intercept entire of flights of Soviet bombers and shoot them down with the Hughes AIM-47 Air-to-air NUCLEAR missile! The YF-12A with a top speed in excess of 2435.8 mph/mach3.2, is still the fastest fighter-interceptor EVER built and flown.
Not really. The YF-12A was a fighter prototype designed to destroy enemy bombers. The SR-71 was modified from the YF-12A as a high-speed, high-altitude reconnaisance aircraft, equipped with cameras (not weapons).
This means yarn forward.
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The owner is the CEO of Enterprise Rent-A-Car
The YF-23, a prototype stealth fighter developed by Northrop and McDonnell Douglas, has a top speed estimated to exceed Mach 2.0, which is approximately 1,522 miles per hour (2,448 kilometers per hour) at altitude. This speed, combined with its advanced aerodynamic design and stealth capabilities, allows it to operate effectively in a variety of combat scenarios. However, exact performance specifications remain classified.
The F-22 had horizontal tail surfaces, whearas the YF-23 did not.The F-22 had a intake situated at the wing root, at the first quarter-line, whearas the YF-23 had a intake situated under the wing proper, at the centrelineThe F-22 has a maximum speed of Mach 2.25 (1670 mph) at altitude and Mach 1.82 (1350 mph) at supercruise, whearas the YF-23 has a maximum speed of Mach 2.2+ (1630+ mph) at altitude and Mach 1.6 (1185 mph) at supercruise.The F-22 has a wing swept at the front more than at the back, whearas the YF-23 has a triangular wing with a wing swept the same at the front and back.
No if you can prove you live in the European Community, yes yf you are not.
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