Curtiss XF-87 Airplane

Curtiss XF-87 Airplane:
The XF-87 was the last aircraft built by Curtiss Aircraft. The specification originally called for a twin-engine, single-place fighter, which evolved into an attack aircraft (XA-43) and finally to a quad-jet, twin-place, all-weather, high-altitude fighter. Two prototype XF-87s were built (S/N 45-59600 and 46-522), the second of which was modified to the sole XF-87A. The XF-87 was designed for an innovative nose turret capable of swiveling in a wide arc around the axis of flight; however, the turret was never actually installed on the XF-87.