NASA Abbreviations and Acronyms

1. RW
   Runway
2. RW
   Response Word
3. RW
   Reaction Wheel
4. RWA
   Reaction Wheel Assembly
5. RWD
   Right Wing Down
6. RWM
   Read/Write Memoro
7. RWY
   Runway
8. RX
   Receive
9. RX
   Receiver
10. RY
    Runway
11. RYD
    Real Year Dollars
12. RZ
    Revolution
13. RZ
    Return To Zero
14. SA
    Safing Area
15. SA
    State of The Art
16. SA
    System Administrator
17. SA
    Shaft Angle
18. SA
    Solar Array
19. SA
    Supplemental Agreement
20. SA
    Service Agreement

Last updated: May 6, 2025 — Total entries: 14,020