- U-2 (U-Turn)
- U-2 (AirCross)
- U-3 2002 (AirCross)
- U-3 2003 (AirCross)
- U-3 2005 (AirCross)
- U-4 (AirCross)
- U-5˛ (AirCross)
- U-6˛ (AirCross)
- UBERIRDISCHE (Angel)
- U CROSS (AirCross)
- U CRUISE (AirCross)
- U DOUBLE (AirCross)
- U FLY 1 (AirCross)
- U FLY 2 (AirCross)
- U FLY 3 (AirCross)
- UFO (AirDesign)
- UFO (Shama)
- UFO (Sky-Angel)
- UFO (Wind Valley)
- U FUN (AirCross)
- UF SMILE (FlyCastelluccio)
- U INFINITE (AirCross)
- ULTIMA (FlyCastelluccio)
- ULTIMA (Harley)
- ULTIMA 1 (AirCross)
- ULTIMA 2 (AirCross)
- ULTIMA 3 2002 (AirCross)
- ULTIMA 3 2003 (AirCross)
- ULTIMA 3 2005 (AirCross)
- ULTIMA 4 (AirCross)
- ULTIMA 5 (AirCross)
- ULTIMA 6 (AirCross)
- ULTIMA SPORT (AirCross)
- ULTRALITE 1 (Ozone)
- ULTRALITE 2 (Ozone)
- ULTRALITE 3 (Ozone)
- ULTRALITE 4 (Ozone)
- UNIQUE (Comet)
- UNIOR (Pilot)
- UNIVERSAL (Dudek)
- UNIVERSAL 1.1 (Dudek)
- UNNO (Nova)
- UNNO (Sol)
- UNO (Firebird)
- UP (Ultralight Products)
- UP-AT (Bicla-Wing)
- UP-EASY (Bicla-Wing)
- U PRIME 1 (AirCross)
- U PRIME 2 (AirCross)
- URRACO (Custom-Sail)
- URRACO (Trekking)
- URRACO-SP (Trekking)
- URUBUH (Airbow)
- U SHARE (AirCross)
- USPORT 1 (AirCross)
- USPORT 2 (AirCross)
- USPORT EVO (AirCross)
- USPORT FR (AirCross)
- US-VOILES
- U-TURN
