page_title: Ascent propulsion system
hierarchical_section_title: Ascent propulsion system
caption_attribution_description: English: The ascent stage of Apollo 17's Lunar Module Challenger rendezvous with Command Module America for the journey to Earth after 3 days on the Moon. Polski: Człon wznoszenia modułu księżycowego Apollo 17 "Challenger" zbliża się do modułu dowodzenia "America", aby na jego pokładzie rozpocząć podróż do domu, po 3 dniach spędzonych na Księżycu.
context_page_description: The ascent propulsion system or lunar module ascent engine is a fixed-thrust hypergolic rocket engine developed by Bell Aerosystems for use in the Apollo lunar module ascent stage. It used Aerozine 50 fuel, and N
  ₂O
  ₄ oxidizer. Rocketdyne provided the injector system, at the request of NASA, when Bell could not solve combustion instability problems.
context_section_description: The ascent propulsion system (APS) or lunar module ascent engine (LMAE) is a fixed-thrust hypergolic rocket engine developed by Bell Aerosystems for use in the Apollo lunar module ascent stage. It used Aerozine 50 fuel, and N
  ₂O
  ₄ oxidizer. Rocketdyne provided the injector system, at the request of NASA, when Bell could not solve combustion instability problems.
caption: Apollo 17 LM Ascent Stage
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