TYPE: All-weather, high-altitude fighter
ACCOMODATION: Pilot and radar-operator
POWER PLANT: Four Westinghouse J34-WE-7 turbojet engines, rated at 1,360 kp. thrust each
PERFORMANCE: 520 mph at 30,000 ft
COMMENT: The XF-87 was the last aircraft built by Curtiss Aircraft. The specification originally called for a twin-engine, single-seat 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, 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. The very large fighter was severely underpowered by four J34 turbojets and was redesigned for two J47 turbojets (XF-87A). A production order for 58 XF-87As and 30 RF-87s was canceled before any aircraft were constructed (Ref.: 23).