Descent Propulsion System

Decreased clearance led to buckling of the extended descent engine nozzle on the landing of Apollo 15

The Descent Propulsion System (DPS) or LMDE (Lunar Module Descent Engine) is a variable throttle hypergolic rocket engine developed by Space Technology Laboratories (TRW) for use in the Apollo Lunar Module Descent Stage. It used Aerozine 50 fuel and N₂O₄ oxidizer. This engine used a pintle injector, a design also used later in the SpaceX Merlin engine.

单词	Lunar Module Descent Engine
释义	Lunar Module Descent Engine 英语百科 Descent Propulsion System The Descent Propulsion System (DPS) or LMDE (Lunar Module Descent Engine) is a variable throttle hypergolic rocket engine developed by Space Technology Laboratories (TRW) for use in the Apollo Lunar Module Descent Stage. It used Aerozine 50 fuel and N₂O₄ oxidizer. This engine used a pintle injector, a design also used later in the SpaceX Merlin engine.
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