Knjiga pojmova u zrakoplovstvu/Kratice u zrakoplovstvu/U
| Kratica | Značenje kratice | Prijevod |
|---|---|---|
U |
Uniform | sricanje slova U u međunarodnom radiotelefonskom prometu |
| UA | Pilot Report (PIREP) | |
| UAC | Upper Air Control | kontrola letenja za gornji zračni prostor |
| UAR | Upper Air Route | gornji zračni put |
| UARS | Unmanned Air Reconnaissance System | bespilotni sustav za izviđanje iz zračnog prostora |
| UART | Universal Asynchronous Receiver-Transmitter) | |
| UAV | Unmanned Air Vehicle | bespilotna letelica |
| UBE | Ultra Bypass Engine | ultra dvo-protočni motor |
| UBR | Utility Bus Relay) | |
| UDA | Upper Advisory Service Area | oblast savjetodavnih usluga za gornje zračne putove |
| UDF | Unducted Fan (Engine) | prop-ventilatorski (motor) |
| UER | Unscheduled Engine Removal | neplanirana zamjena motora |
| UF | Under Frequency) | |
| UFET | Unipolar Field Effect Transistor) | |
| UHB | Ultra-High Bypass (Engine) | ultravisoka dvoprotočnost motora |
| UHF | Ultra-High Frequency | ultravisoka učestalost |
| UIR | Upper Flight Information Region | oblast informacija za gornji zračni prostor |
| UJT | Unijunction Transistor) | |
| UK | United Kingdom) | |
| UL | Unlimited | neograničeno |
| ULD | Underwater Locating Device | uređaj za otkrivanje mjesta udesa koji radi i pod vodom |
| ULD | Unit Load Device | robni kontejner (standardni) |
| UN | United Nations) | |
| UNICOM | Universal Communications) | |
| UPR | Upper | gornji |
| URET | User Request Evaluation Tool) | |
| USAF | United States Air Force | ratno zrakoplovstvo SAD |
| USB | Upper Sideband | gornji bočni opseg |
| USUA | United States Ultralight Association) | |
| UTC | Coordinated Universal Time | univerzalno vrijeme |
| UUA | Urgent pilot report (message identifier) ) | |
| UV | Under Voltage) |