North American YF-93A
     The YF-93A was originally the F-86C, but was redesignated after
 extensive design changes needed to prepare the aircraft for the
 USAF 'Penetration Fighter' competition. The McDonnell XF-88 and
 Lockheed XF-90 were also evaluated, but the USAF never acquired
 a `Penetration Fighter'. A contract for 118 production F-93A's was
 signed, but canceled before any aircraft were built.
     The standard F-86 engine air inlet was changed on the first pro-
 totype (S/N 48-317) to two flush mounted fuselage inlets to make
 room for avionics and to further streamline the aircraft for in-
 creased range. The second aircraft (S/N 48-318); however, was com-
 pleted with conventional engine air intakes. Both aircraft had
 unusual two-wheel main landing gear struts to support the increased
 weight caused by the large fuel load carried. Both prototype
 aircraft were used as test platforms by NACA before being
 declared surplus and scrapped.
 TYPE            Number built/Converted     Remarks
 YF-93A                   2      Penetration Ftr.; F-86C; 118 canc.
 SPECIFICATIONS
 Span: 38 ft. 9 in.
 Length: 44 ft. 1 in.
 Height: 15 ft. 8 in.
 Weight: 25,500 lbs. maximum
 Armament: Designed for six .50-cal. machine guns
 Engines: Pratt & Whitney J48 of 8,750 lbs. thrust with afterburner
 PERFORMANCE
 Maximum speed: 708 mph at sea level
 Range: 1,967 miles
 Service ceiling: 46,800 ft.
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