[PAR] [TLE] Lockheed SR-71 Blackbird [SEP] The Lockheed SR-71 "Blackbird" is a long-range, Mach 3+ strategic reconnaissance aircraft that was operated by the United States Air Force.  It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division.  American aerospace engineer Clarence "Kelly" Johnson was responsible for many of the design's innovative concepts.  During aerial reconnaissance missions, the SR-71 operated at high speeds and altitudes to allow it to outrace threats.  If a surface-to-air missile launch was detected, the standard evasive action was simply to accelerate and outfly the missile.  The SR-71 was designed with a reduced radar cross-section. [PAR] [TLE] Pratt &amp; Whitney J58 [SEP] The Pratt & Whitney J58 (company designation JT11D-20) was a jet engine that powered the Lockheed A-12, and subsequently the YF-12 and the SR-71 aircraft.  The J58 was a single-spool turbojet with an afterburner.  It had a unique bleed from the compressor to the afterburner which gave increased thrust at high speeds.  This feature caused it to be referred to as a turboramjet in some writings.  It delivered 25,000 pound-force (110 kN) of thrust without afterburner (dry) and 34,000 (150 kN) with afterburner (wet).
[PAR] [TLE] Lockheed SR-71 Blackbird [ SEP ] The Lockheed SR-71 " Blackbird " is a long - range , Mach 3 + strategic reconnaissance aircraft that was operated by the United States Air Force . It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division . American aerospace engineer Clarence " Kelly " Johnson was responsible for many of the design 's innovative concepts . During aerial reconnaissance missions , the SR-71 operated at high speeds and altitudes to allow it to outrace threats . If a surface - to - air missile launch was detected , the standard evasive action was simply to accelerate and outfly the missile . The SR-71 was designed with a reduced radar cross - section . [PAR] [TLE] Pratt & amp ; Whitney J58 [ SEP ] The Pratt & Whitney J58 ( company designation JT11D-20 ) was a jet engine that powered the Lockheed A-12 , and subsequently the YF-12 and the SR-71 aircraft . The J58 was a single - spool turbojet with an afterburner . It had a unique bleed from the compressor to the afterburner which gave increased thrust at high speeds . This feature caused it to be referred to as a turboramjet in some writings . It delivered 25,000 pound - force ( 110 kN ) of thrust without afterburner ( dry ) and 34,000 ( 150 kN ) with afterburner ( wet ) .
The Pratt & Whitney J58 was a jet engine that powered a long-range, Mach 3+ strategic reconnaissance aircraft operated by who?
The Pratt & Whitney J58 was a jet engine that powered a long - range , Mach 3 + strategic reconnaissance aircraft operated by who ?
United States Air Force
United States Air Force