J58 jet engine and supersonic flight

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Astronuc
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We've had several threads on the SR-71 (and related craft) and the J58 propulsion system.

https://www.physicsforums.com/threads/sr-71-blackbird-supersonic-aircraft.68694/
https://www.physicsforums.com/threads/j-58-engine-inlet-spike.413262/
https://www.physicsforums.com/threads/high-altitude-aerodynamics-and-propultion.290296/

One can find the SR-71s in various museums around the country, and one is at Duxford, England, one of the bases from which they operated.
https://www.iwm.org.uk/history/sr-71-blackbird

I just want to add the following video since it discusses the J58, and of the materials, and some of the challenges for that kind of propulsion system - e.g., thermal expansion and cooling of the engine.

 
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