Export restricted (ITAR), sale only to US Citizens and Organizations. Marquardt R-40 Series Attitude Control Engine Scarfed Nozzle Cone Variant, measuring approximately 36″ long and in diameter and 9.5″ in diameter at its widest point, with a diameter of 4.25″ across the top of the combustion chamber. Hand-engraved along the top: "S/N 102 234350B S/N115." In fine condition. The Marquardt R-40A rocket engine was a thruster developed for Shuttle Orbiter orbit control. The Orbiter had 38 long scarf, short scarf, or no scarf configurations, depending on the location—scarfed nozzles are cut at an angle out of aerodynamic considerations, allowing the cone to be flush with the body.
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