The first USAF YF-16A prototype (#01567) in the standard prototype camouflage scheme. The YF-16 was designed to meet the ACF spedification: a simple day fighter, without radar, and armed with only short-range missiles. [USAF photo]

USAF YF-16A prototype, #01567 somewhere over Nevada. [USAF photo]

USAF YF-16A prototype, #01568 in a blue and white camouflage scheme. [USAF photo]

YF-16B, #75751, void of engine but with an external anti-spin recovery system still installed taken in a sore condition at Edwards AFB on April 24th, 1997. [ Robs Aircraft Picture Library photo by John Smith]

YF-16 no. 2, #01568, in rollout scheme Note that the first flag on the aircraft is the Iranian one. [USAF photo]

FSD no. 1, #50745, in rollout scheme. Note the Iranian flag has already been removed. [USAF photo]

FSD no. 1, #50745, in all gray scheme and with extended tail housing. [USAF photo]

FSD no. 2, #50746, in all gray scheme and loaded with heavy ordnance. [USAF photo]

FSD no. 3, #50747, in two-tone scheme. [USAF photo]