SM U-77
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For other ships of the same name, see German submarine U-77.
| Career (German Empire) |  |
|---|---|
| Name: | U-77 |
| Ordered: | 9 March 1915 |
| Builder: | AG Vulkan, Hamburg (Werk 59) |
| Launched: | 9 January 1916 |
| Commissioned: | 10 March 1916 |
| Fate: | 7 July 1916 - Lost after this date while on a mission to lay mines off Kinnaird Head, Scotland. 33 dead (all hands lost).[1] |
| General characteristics | |
| Class & type: | German Type UE I submarine |
| Displacement: |
755 tonnes (743 long tons) surfaced 832 tonnes (819 long tons) submerged [2] |
| Length: |
56.8 m (186 ft 4 in) (overall)[2] 46.66 m (153 ft 1 in) pressure hull[3] |
| Beam: | 5.9 m (19 ft 4 in) (overall)[2]5 m (16 ft 5 in) pressure hull[3] |
| Height: | 8.25 m (27 ft 1 in)[3] |
| Draught: | 4.86 m (15 ft 11 in)[2] |
| Propulsion: |
900 hp (670 kW) surfaced 660 kW (890 hp) submerged[2] |
| Speed: |
9.9 knots (18.3 km/h; 11.4 mph) surfaced 7.9 knots (14.6 km/h; 9.1 mph) submerged[2] |
| Range: | 7,880 nmi (14,590 km; 9,070 mi) at 7 kn surfaced 83 nmi (154 km; 96 mi) at 4 kn submerged |
| Complement: | 32 men[2] |
| Armament: |
One 50 cm (20 in) torpedo tubes forward and one 50 cm torpedo tubes aft with two torpedoes[4] plus one 8.8 cm (3.5 in) deck gun two minelaying tubes for 38 mines[2] |
| Service record | |
|---|---|
| Part of: | Imperial German Navy |
| Commanders: |
Erich Günzel 10 Mar 1916 - 7 Jul 1916 |
| Operations: |
2 patrols 29 Jun 1916 - 7 Jul 1916 I Flotilla No successes.[1] |
SM U-77 was one of 329 submarines serving in the Imperial German Navy in World War I, engaged in commerce warfare during the First Battle of the Atlantic.
Operations
U-77. Commanded by Kaptlt. Erich Günzel, lost with her. Came off the stocks at Hamburg (Vulcan) in 1916; in May and June was at Kiel School, and first entered North Sea with U-76 on 29 June, to join the 1st Half Flotilla.
- 5 July 1916. Left for the north, and laid mines between about 57°45′N 2°12′W / 57.750°N 2.200°W and 57°47′N 2°23′W / 57.783°N 2.383°W. It seems possible she sank in 57°35′N 1°27′W / 57.583°N 1.450°W before midnight 7 July 1916 as a result of some accident. Before this she had laid mines off Kinnaird Head.
Notes
- ↑ 1.0 1.1 Uboat.net U-77
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Encyclopedia of U-boats (2004), London:Greenhill Books, ISBN 1-85367-623-3, p.32
- ↑ 3.0 3.1 3.2 Type UE 1 UE ocean minelayers class
- ↑ Fitzsimons, Bernard. The Illustrated Encyclopedia of 20th Century Weapons and Warfare (London: Phoebus, 1978), Vol. 23, p.2536.
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