Apollo Reaction Control System Model Replica



Also available as a display, with elegant base and descriptive nameplate.




About History
Apollo RCS engine 
Apollo Lunar Module Reaction Control System Marquardt R-4D Rocket Engine with Extended Nozzle, Manufactured in Early 1971. Sixteen of this type of engine were mounted on the exterior of each Lunar Module in four quadruple clusters and sixteen as well on each Service Module. 
The Marquardt Corporation was awarded the contract to build the reaction-control rocket engines for the Apollo spacecraft in 1963. They were first flown in the unmanned Apollo-Saturn 201 test flight launched in February 1966. Designed for maneuvering in space, this was a bipropellant engine using hypergolic nitrogen tetroxide and hydrazine as propellants, generating 100+ pounds of thrust. Overall, 13" long. 

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