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The Lockheed SR-71 "Blackbird" is a retired long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. [N 1] Its nicknames include "Blackbird" and "Habu". [1] The SR-71 was developed in the 1960s as a black project by Lockheed's Skunk Works division.
The Pratt & Whitney J58 (JT11D-20) turbojet aero engine, which had a specific fuel requirement; namely JP-7 turbine fuel.. Turbine Fuel Low Volatility JP-7, commonly known as JP-7 (referred to as Jet Propellant 7 prior to MIL-DTL-38219 [1]) is a specialized type of jet fuel developed at Pratt and Whitney by master chemist Clarence Brown CB Eichman in 1955 for the Central Intelligence Agency ...
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.
The Lockheed Martin SR-72, colloquially referred to as "Son of Blackbird", [1] is an American hypersonic concept intended for intelligence, surveillance, and reconnaissance (ISR) proposed privately in 2013 by Lockheed Martin as a successor to the retired Lockheed SR-71 Blackbird. In 2018, company executives said an SR-72 test vehicle could fly ...
Triethylborane was used to ignite the JP-7 fuel in the Pratt & Whitney J58 turbojet/ramjet engines powering the Lockheed SR-71 Blackbird [2] and its predecessor, the A-12 OXCART. Triethylborane is suitable because it ignites readily upon exposure to oxygen.
Zip fuel research led to the use of triethylborane as an ignition agent for the JP-7 fuel used in the SR-71 Blackbird. [13] [14] One potentially lasting relic of the HEF program is an abandoned dirt airfield outside Boron, California. Marked on USGS topographical maps as "Air Force Plant #72", nothing but the airstrip and a water tank were ever ...
The overall improvements increased range of the SR-71 by 7 percent. [19] Of the three YF-12As, AF Ser. No. 60-6934 was damaged beyond repair by fire at Edwards AFB during a landing mishap on 14 August 1966; its rear half was salvaged and combined with the front half of a Lockheed static test airframe to create the only SR-71C. [20] [21]
Lockheed SR-71 Blackbird; Initially developed as A-12 by Central Intelligence Agency; first flight took place at Groom Lake , Nevada, on 25 April 1962. USAF developed SR-71 from CIA design; first flight took place on 22 December 1964. Operational use of SR-71 began in 1968. Retired in 1989 due to budget reductions.