unre - vibr
- unrevetted hardstanding
- unserviceability
- unserviceability marking
- unserviceable
- unstable ground
- unsurfaced landing strip
- unsurfaced pavement
- unsvc
- unwired earth current communication system
- upgrade
- upheaval
- uphill slope
- upkeep of aerodrome
- upper deck
- upper launching mount
- upright
- upright of frame
- upwind
- usability of runway
- usable airstrip
- usable landing area
- usable runway length
- usable surface of airport
- usable surface of airport area
- use factor
- useful capacity
- USNAS
- usual tear and wear
- utilidor
- utilities
- utility truck
- UXB
- V-type snow plough
- VAB
- vacuum cleaner
- vacuum concrete
- vacuum flask
- vacuum fuel feed
- vacuum mat
- vacuum pressure valve
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