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 air-breathing Pratt & Whitney J58 turbojet engine (company designation of JT11D-20J/K) was initially designed for service with the United States Navy (USN) as a high-performance powerplant for extended high-speed/high-altitude work (in excess of Mach 3.0 and 80,000 feet).

Feb 2, 2024 · While the sleek form factor of the Blackbird makes it one of the most recognizable reconnaissance aircraft ever constructed, the two Pratt & Whitney J58 Turbojet Engines that power the jet are...

The Pratt & Whitney J58 is an American afterburning turbojet engine that powered the Lockheed A-12, the YF-12 interceptor, and the SR-71 Blackbird reconnaissance as well as the SR-71B trainer ...

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.

Pratt & Whitney designed this engine for continuous operation at high Mach number flight with compressor inlet temperatures above 400 degrees C (750 degrees F). Development began about 1958, and production began in 1964.

Pratt & Whitney designed this engine for continuous operation at high Mach number flight with compressor inlet temperatures above 400 degrees C (750 degrees F). Development began about 1958, and production began in 1964.

The J58s were retrofitted as they became available, and became the standard engine for all subsequent aircraft in the series (A-12, YF-12, M-21), as well as the SR-71. The A-12 flew missions over Vietnam and North Korea before its retirement in 1968.

4 days ago · The J58 was the first engine designed to operate for extended periods using its afterburner, and it was the first engine to be flight-qualified at Mach 3 for the Air Force. Two J58s power the SR-71 as well as the YF-12A and most of the A-12s.

The Pratt & Whitney J58 engine was a powerful engine developed in the late 1950s, designed for high speed and high altitude. The engine is best known for powering the Lockheed SR-71 “Blackbird,” a strategic reconnaissance aircraft flown by both the U.S. Air Force and NASA.