Apollo Lunar Module Descent Engine (LMDE) Pintle Injector developed by TRW, measuring 9.5" long and 4.5" in diameter, labeled on the side: "X403956 S/N 2, X403955 S/N 2." The injector was the first implementation of throttleable coaxial injector technology, allowing the LM Pilot to vary output of the LMDE in order to regulate the spacecraft's descent rate down to the moon's surface; the technology was subsequently adopted by Space-X for its Merlin Rocket Engine.
This item is available for sale to U.S. citizens and organizations only; no export permitted due to ITAR restrictions.
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