Spacecraft Abbreviations and Acronyms

  1. LM
    Lunar Modules
  2. LMM
    Locator Middle Marker
  3. LMSS
    Lockheed Martin Space Systems
  4. LOM
    Locator Outer Marker
  5. LORAN
    Long-Range Navigation
  6. LPR
    Low Pressure Rotor
  7. LPV
    Localizer Performance With Vertical Guidance
  8. LRN
    Long-Range Navigation
  9. LRO
    Lunar Reconnaissance Orbiter
  10. LRU
    Line-Replaceable Unit
  11. LSAM
    Lunar Surface Access Module
  12. LSS
    Large Space Simulator
  13. LTG
    Lightning
  14. LTNG
    Lightning
  15. LX
    Lightning
  16. MB
    Marker Beacon
  17. MCBF
    Mean Cycles Between Failures
  18. MCDU
    Multi-purpose/Multi-function Control and Display Unit
  19. MD
    Medium Frequency
  20. MDA
    Minimum Decent Altitude

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