U 3
U3 or U 3 stands for:
- a child check-up, see child check-up # The individual examinations
- Umlage U3 , the German insolvency levy
- Cover page 3 (inside back) for ad bookings in print publications, see pagination # covers
- U3 (standard) , a standard for USB storage devices
- Avies , an airline based on the IATA code
U3 denotes the following underground lines:
- Subway line 3 (Berlin)
- Underground line A (Frankfurt am Main)
- Subway line 3 (Hamburg)
- Main line 1 (Munich subway) # U3
- U-Bahn Nürnberg # Route of the U3
- Subway line 3 (Vienna)
U 3 is the name of the following submarines:
- SM U 3 (1909–1918), a submarine of the German Imperial Navy
- SM U-3 (kuk Marine) (1909–1915), a submarine of the Austro-Hungarian Navy
- U 3 (Kriegsmarine) (1935–1946), a submarine of the German Kriegsmarine
- U 3 (Bundeswehr) (1962–1967), a submarine of the Federal Navy (1962–1964 as Kobben in the Norwegian Navy)
- U 3 (Sweden) , museum submarine in Malmö (1943–1967)
U-3 stands for:
- Cessna U-3 "Blue Canoe", military version of the Cessna 310
- Universal U-3, a Soviet tractor, see Universal (tractor)
U 3 stands for:
U (3) stands for:
- the unitary group over a three-dimensional Hilbert space in mathematics
Ü3 stands for:
- the extended security review with security investigations in the German Security Review Act
See also:
