Reaction Motors (Thiokol) XLR99: “There’s never been anything like it.”

“Designed for a manned-system, the 50,000 pounds of thrust in its single chamber has to be controllable at the pilot’s discretion: he has to be able to throttle this engine in flight.”

Harry Cook, Program Manager for the X-15‘s engine.

 

One thought on “Reaction Motors (Thiokol) XLR99: “There’s never been anything like it.”

  1. From sulfur and glue to O-ring seals on solid fuel rockets. Quite a successful company (except when the temperature drops)…

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