SM U-23 (Austria-Hungary)
The design for U-23 was based on that of the Havmanden class of the Royal Danish Navy (Havmanden pictured) | |
| History | |
|---|---|
| Austria-Hungary | |
| Name | SM U-23 |
| Ordered | 27 March 1915 |
| Builder | Hungarian UBAG yard, Fiume |
| Launched | 5 January 1917 |
| Commissioned | 1917 |
| Fate | Sunk by Italian destroyer Airone, 21 February 1918 |
| Service record | |
| Commanders: |
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| Victories: | None |
| General characteristics | |
| Type | U-20-class submarine |
| Displacement |
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| Length | 127 ft 2 in (38.76 m) |
| Beam | 13 ft (4.0 m) |
| Draft | 9 ft (2.7 m) |
| Propulsion |
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| Speed |
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| Range |
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| Complement | 18 |
| Armament |
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SM U-23 or U-XXIII was a U-20-class submarine or U-boat built for and operated by the Austro-Hungarian Navy (German: Kaiserliche und Königliche Kriegsmarine or K.u.K. Kriegsmarine) during the First World War. The design for U-23 was based on that of the submarines of the Royal Danish Navy's Havmanden class (which had been designed by Whitehead & Co. in Fiume), and was largely obsolete by the beginning of the war.
U-23 was just over 127 feet (39 m) long and was armed with two bow torpedo tubes, a deck gun, and a machine gun. In February 1918, U-23 was sunk with all hands by the Italian torpedo boat Airone while attempting an attack on the Italian transport Memfi. U-23 had no wartime successes.