troublesome at high angles of attack, restricting air flow to the engines. NACA Research Memorandum A7I06 'An experimental investigation of NACA submerged air inlets in a 1/5-scale model of a fighter airplane', Donald E Gault, Dec 1947 (from Cranfield repository) By this time, however, higher performance aircraft were available and both aircraft were eventually declared surplus and scrapped. Operators United States Air Force Variants F-86C Original designation for a re-engined variant of the F-86A, two built. YF-93A Two prototype F-86Cs redesignated, F-93A Production variant, order for 118 cancelled. Specifications (YF-93A) See also References Notes Bibliography Angelucci, Enzo and Peter Bowers. The American Fighter. Sparkford, UK: Haynes Publishing Group, 1987. . Davis, Larry. F-86 Sabre in action. Carrollton, Texas: Squadron/Signal Publications, 1992. . Pace, Steve. X-Fighters: USAF Experimental and Prototype Fighters, XP-59 to YF-23. Osceola, Wisconsin: Motorbooks International, 1991. . Sgarlato, Nico and Franco Ragni. U.S. Fighters of the Fifties. Carrollton, Texas: Squadron/Signal Publications, 1979. . Wagner, Ray. The North American Sabre. London: Macdonald, 1963. No ISBN. External links National Museum of the USAF: North American YF-93A Fact Sheet The F-86C/YF-93 "Sabre" North American F-86C/YF-93A AMERICAN NOTEBOOK – Derby Entrant – a report on the YF-93 – Flight Archive, 18 May 1950 F-93 1950s United States fighter aircraft Single-engined jet aircraft Low-wing aircraft Cancelled military aircraft projects of the United States YF-93 Aircraft first flown in 1950