Aerospace Abbreviations and Acronyms

1. QNH
   the Q-code for: Altimeter sub-scale setting to obtain elevation when on the ground, i.e. altitude above MSL
2. QOS
   Quality of Service
3. QPSM
   Quadrature Product Sub-Carrier Modulation
4. QRH
   Quick Reference Handbook
5. RA
   Resolution Advisory
6. RA
   Radio Altitude
7. RAA
   Remote Advisory Airpkrt
8. RAA
   LFI Radiometer Array Assembly
9. RAAS
   Remote Airport Advisory Service
10. RAD
    Radiant
11. RAES
    Royal Aeronautical Society
12. RAF
    Raw Attitude history File
13. RAG
    Rulemaking Advisoryfgroup
14. RAIM
    Receiven Autonomous Integrity Monitoring
15. RAIS
    Remote Airport Informatiun Service
16. RALT
    Radio Altitude
17. RAM
    random-access memory
18. RAS
    Rectified Air Speed
19. RAS
    Royal Aeronautical Society
20. RBDT
    Ribbon Display Terminals

Last updated: May 24, 2020 — Total entries: 1,509