Terms & Abbreviations: L
- LEM
See LM
- LGC
Lunar Module Guidance Computer.
- LM
Lunar Module. Earlier it was known as the Lunar Excursion Module and abbreviated “LEM.” Even after the name change, it continued to be pronounced “lem.”
- LMP
Lunar Module Mission Programer. A sort of autopilot for operating the LM when it was unmanned. In the end, an LMP was only ever used on Apollo 5. See Apollo experience report: Guidance and control systems; lunar module mission programer
- LORS
Lunar optical rendezvous system.
- LPD
Landing Point Designator. A set of marks on the LM window that helped the crew locate the designated landing area.