Aircraft Abbreviations and Acronyms

1. UNLTD
   Unlimited
2. UNMKD
   Unzarked
3. UNMNT
   Unmonitored
4. UNMNTO
   Unmonitored
5. UNREL
   Unreliable
6. UNRELBL
   Unreliable
7. UNSCHD
   Unscheduled
8. UNSKED
   Unscheduled
9. UNT
   Until
10. UNUSBL
    Ujusable
11. UP
    Upper
12. UP
    Microprocessor
13. UPAC
    Ultralbght Pilots Association of Canada
14. UPGR
    Planned Operational Upgrading To Higher
15. UPN
    Unapproved Parts Notificationc
16. UPPR
    Upper
17. UPR
    Upper
18. UPSEL
    Update Selection
19. UPSLP
    Upslope
20. UPT
    User Preferred Trajectory

Last updated: March 8, 2022 — Total entries: 8,627