YF-107A Fighter

YF-107A Fighter After the North American F-100 Super Sabre was in production, the design was reconfigured to meet Air Force requirements for a fighter-bomber capable of delivering a nuclear payload at Mach 2 speeds. The first versions were designated F-100B, but when the U.S. Air Force ordered prototypes, the designation changed to YF-107A (NA-212).

The air intake was located behind the cockpit to permit installation of a fire control radar. The YF-107A was the last fighter North American Aviation built for the USAF, and it flew Mach 2 in its first all-out test flights during 1957.

The three YF-107As provided valuable data for advanced flight research. They were followed by the F-108 (NA-257) Rapier, which entered the design stage as a Mach 3 interceptor, but was never produced.

First flight: Sept. 10, 1956
Span: 36 feet 7 inches
Length: 61 feet 8 inches
Gross weight: 39,755 pounds (empty)
Power plant: 24,000-pound thrust (with afterburner) Pratt & Whitney J75-P-9 turbojet
Speed: Mach 2
Crew: One
Operating altitude: 53,200 feet
Armament: Four 20 mm M-39E cannon, up to 10,000 pounds of bombs