F4D/F-6A Skyray Fighter

F4D Skyray fighter jet in flightThe single-place Douglas Skyray was named after the undersea manta ray it resembled. It was on the leading edge of aircraft design, could climb to 40,000 feet in two minutes and reach Mach 1 during a dive.

Analysis of data captured in Germany after World War II indicated that the delta-shaped wing would take the most advantage of jet propulsion for fast-climbing interceptor fighters. In 1948, Douglas signed a contract to build the F4D-1. Nicknamed "the 10-minute killer," the Skyray broke five world's time-to-height records. In 1953, the Skyray was co-winner with North America's Super Sabre of the prestigious Collier Trophy.

In 1957 and 1958, a Skyray-equipped squadron was named the top interceptor squadron in the North American Air Defense Command, although it was the only Navy unit assigned to the Air Force-dominated command.

Douglas built 421 Skyrays, including two prototypes, and they continued to roll out of the El Segundo, Calif., plant until December 1958. After 1962, it was designated the F-6A and served Marine and Navy carrier squadrons until February 1964. An improved version, the "Super-Skyray," was named the F5D Skylancer, but never went into production. The four prototype Skylancers were delivered to NASA, where they contributed to the development of a variety of products, including the Gemini escape system and the space shuttle.

Specifications
First flight: Jan. 23, 1951
Wingspan: 33 feet 6 inches
Length: 45 feet 3 inches
Height: 13 feet
Loaded weight: 25,008 pounds
Max. speed: 722 mph
Ceiling: 55,000 feet
Power plant: 9,700-pound thrust Pratt & Whitney J57-P-2 turbojet (later, 16,000-pound thrust with afterburner J57-P-8)
Range: 593 miles
Accommodation: One crew
Armament: Four 20 mm cannons, 4,000 pounds of stores