The Pratt & Whitney J58 was a jet engine that powered a long-range, Mach 3+ strategic reconnaissance aircraft operated by who?
Lockheed SR-71 Blackbird 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.
Operation Power Flite Operation Power Flite was a United States Air Force mission in which three Boeing B-52 Stratofortresses became the first jet aircraft to circle the world nonstop, when they made the journey in January 1957 in 45 hours and 19 minutes, using in-flight refueling to stay aloft. The mission was intended to demonstrate that the United States had the ability to drop a hydrogen bomb anywhere in the world.