Aerospace Abbreviations and Acronyms

1. PSI
   Payload Systems Inc.
2. PSK
   Phase-Shift Keying
3. PSM
   Planck Sky Model
4. PSO
   Planck Science Office
5. PSR
   Point of Safe Return
6. PSR
   Power Supply Reset
7. PSR
   Primary Surveillance Radar
8. PSTD
   Pseudospectral Time-Domain
9. PSU
   Passenger Service Unit
10. PSU
    Personal Service Unit
11. PSU
    Personal Service Units
12. PTC
    Positive Train Control
13. PTD
    Physical Theory of Diffraction
14. PTF
    Precision Timing Facility
15. PTF
    Passenger To Freighter
16. PUS
    Packet Utilisation Standard
17. PWM
    Pulse Width Modulation
18. PWT
    Plasma Wind Tunnel
19. PXI
    Praxis Uperience Index
20. QFE
    the Q-code for: Atmospheric pressure at aerodrome elevation

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