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LR53 engine series

Program

Original archive entry. The text, images and links below are kept as they were written.

Series of early Aerojet storable propellant engines developed originally for JATO purposes.

Subtopics

  • 25AL-1000 Aerojet Nitric acid/Amine rocket engine for A-20 ATO. Development begun May 1942. Production version of GALCIT unit. First flight 1944.
  • 25XALD-1000 Aerojet Nitric acid/Amine JATO rocket engine. Development begun May 1942. Droppable version of XLR1, packaged compactly with parachute, for P-38, B-24, and B-25J. First flight 1944.
  • 30AL-1000 Aerojet Nitric acid/Amine rocket engine. Development begun March 1947. Boeing surface-to-air missile, which would evolve into Bomarc and reach IOC in 1959.
  • XLR53AJ-1 Aerojet Nitric acid/Amine rocket engine. Development begun 1949. Superperformance, wing tip mounted, regenerative cooling, pressure fed, 240 sec duration, 1000 lbf thrust each.
  • X4-AL-1000 Aerojet Nitric acid/Amine rocket engine. Braking rocket for glider. Single uncooled chamber, pressure fed, 13 kg of propellant.