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The original Lockheed 12 version, with Wasp Junior engines, was the Model 12A. [4] Almost every Lockheed 12 built was a 12A or derived from the 12A. There was also a Model 12B , using 440 hp (330 kW) Wright R-975-E3 Whirlwind radials, but only two of this model were built. [ 3 ]
The Lockheed A-12 is a retired high-altitude, Mach 3+ reconnaissance aircraft built for the United States Central Intelligence Agency (CIA) by Lockheed's Skunk Works, based on the designs of Clarence "Kelly" Johnson. The aircraft was designated A-12, the twelfth in a series of internal design efforts for "Archangel", the aircraft's internal ...
This is a list of aircraft produced or proposed by the Lockheed Aircraft Corporation from its founding as the Lockheed Aircraft Company in 1926 to its merging with Martin Marietta to form the Lockheed Martin Corporation in 1995. Ordered by model number, Lockheed gave most of its aircraft astronomical names, from the first Vega to the C-5 Galaxy.
The Pratt & Whitney J58 (company designation JT11D-20) is an American jet engine that powered the Lockheed A-12, and subsequently the YF-12 and the SR-71 aircraft. It was an afterburning turbojet engine with a unique compressor bleed to the afterburner that gave increased thrust at high speeds.
A fourth YF-12 aircraft, the "YF-12C", was actually the second SR-71A (AF Ser. No. 61–7951). This SR-71A was re-designated as a YF-12C and given the fictitious Air Force Serial Number 60-6937 from an A-12 to maintain SR-71 secrecy. The aircraft was loaned to NASA for propulsion testing after the loss of YF-12A (AF Ser. No. 60–6936) in 1971.
In September 1940, Cotton's modified Lockheed 12A (G-AFTL), was severely damaged in an air raid at Heston Aerodrome. It was rebuilt by Lockheed, sold in British Honduras, and in 1948 registered in the US as N12EJ; the aircraft resided in Florida in 1992. [14] His postwar Lockheed 12A (G-AGTL) also survives in France in 2005.
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The aircraft was a twin-engine Lockheed 12A, said FAA spokeswoman Mina Kaji. The FAA and the National Transportation Safety Board are investigating, Kaji said.