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  1. Pratt & Whitney J58 - Wikipedia

    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 …

  2. How The SR-71's Engine Made History - Simple Flying

    Apr 26, 2025 · The Pratt & Whitney J58, an engine that was designated by the manufacturer as the JT11D-20, is an American-built jet engine that originally powered the Lockheed A-12, and …

  3. Pratt & Whitney J58 Turbojet - National Museum of the USAF

    Two J58s powered the highly-sophisticated Lockheed SR-71 high-altitude strategic reconnaissance aircraft as well as its forerunners, the Lockheed A-12 and YF-12A prototype …

  4. J58 The Powerplant for the Blackbirds

    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 …

  5. Exploring the Power of the SR-71 Blackbird's J-58 Engine with …

    The SR-71 Blackbird remains one of the most legendary aircraft in aviation history, capable of reaching speeds over Mach 3+. At the heart of this engineering marvel is the Pratt & Whitney J …

  6. Pratt & Whitney J58 Turbojet Engine (SR-71)

    The engine was notable in becoming the first turbojet type to sustain Mach 3.0 speeds for extended periods of time, giving the SR-71 considerable performance advantage against any …

  7. Everything To Know About The J58 Turbojet Engine Powering The SR-71

    Feb 2, 2024 · Development for the Pratt & Whitney-designed J58 turbojet engine began in 1958. At the time, the United States Navy sought a fast reconnaissance jet, though it would later be …

  8. SR-71 J-58 Powerplant - wvi.com

    Apr 15, 1996 · The SR-71 Blackbird is powered by two Pratt & Whitney J-58 turbo-ramjets, each developing 32,500 pounds of thrust with afterburning. The critical problems concerning …

  9. Inside the mind-blowing SR-71 Blackbird legacy - FAST LANE ONLY

    Jun 29, 2025 · The J58 engines on the SR-71 weren’t conventional. At speeds over Mach 2, more than 80% of thrust came from the engine’s inlet spike and bypass airflow, essentially turning it …

  10. 8 Sr71 Engine Facts: How Sr71 Achieves Top Speed

    Sep 1, 2024 · The SR-71 is powered by two Pratt & Whitney J58 turbojet engines, each producing a whopping 32,500 pounds of thrust. These engines are specially designed to operate at …