Spacecraft Abbreviations and Acronyms

1. REL
   Relative Exposure Limit
2. REL
   Relative
3. RF
   Radio Frequency
4. RFI
   Radio Frequency Interference
5. RFS
   Radio Frequency Subsystem
6. RG
   Range
7. RHSM
   Reduced Horizontal Separation Minimal
8. RLG
   Ring Laser Gyroscope
9. RLTV
   Relative
10. RLY
    Relay
11. RMI
    Radio Magnetic Indicator
12. RNAV
    Area Navigation
13. RNG
    Range
14. RNP
    Required Navigation Performance
15. ROC
    Rate of Climb
16. ROD
    Rate of Descent
17. RPM
    Revolutions Per Minute, (Rotations Per Minute)
18. RPM
    Resale Price Maintenance
19. RSS
    Radio Science Subsystem
20. RT
    Route

Last updated: May 24, 2020 — Total entries: 680