| Career (German Empire) | |
|---|---|
| Name: | UB-68 |
| Ordered: | 20 May 1916 [1] |
| Builder: | Germaniawerft, Kiel[1] |
| Yard number: | 286[1] |
| Launched: | 4 Jul 1917[1] |
| Commissioned: | 5 Oct 1917[1] |
| Fate: | shelled until sinking 4 Oct 1918[1] |
| Service record | |
| Part of: | |
| Commanders: |
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| Operations: | 5 patrols;8 Jan 1918 - 4 Oct 1918 Pola Flotilla/Constantinople Flotilla[1] |
| Victories: | 5 ships sunk for a total of 10.758 tons;4 ships damaged for a total of 23.788 tons[1] |
| General characteristics | |
| Class and type: | German Type UB III submarine |
| Displacement: | 512 t (564 short tons), surfaced[2] 643 t (709 short tons), submerged |
| Length: | 183 ft 3 in (55.85 m)[2] |
| Beam: | 19 ft (5.8 m)[2] |
| Draft: | 12 ft 6 in (3.81 m)[3] |
| Propulsion: | 2 × propeller shafts 2 × 6-cylinder, 4-stroke diesel engines, 1,110 bhp (830 kW) total[3] 2 × electric motors, 788 shp (588 kW) total[3] |
| Speed: | 13.9 knots (25.7 km/h), surfaced[2] 7.6 knots (14.1 km/h), submerged |
| Endurance: | 7,280 nautical miles @ 6 knots, surfaced (13,480 km @ 11 km/h)[2] 55 nautical miles @ 4 knots, submerged (102 km @ 7.4 km/h)[2] |
| Test depth: | 50 metres (160 ft)[3] |
| Capacity: | 71 t (70 long tons) fuel[3] |
| Complement: | 34[3] |
| Armament: | 5 × 50 cm (19.7 in) torpedo tubes (4 bow, 1 stern)[3] 10 × torpedoes 1 × 10.5 cm (4.1 in) deck gun |
| Notes: | 30-second diving time[2] |
SM UB-68 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the German Imperial Navy on 5 Oct 1917 as SM UB-68.[Note 1] The submarine conducted five patrols and sank five ships during the war. Under the command of Karl Dönitz, on Oct. 4, 1918 UB-68 encountered technical problems and had to surface where she was shelled until sinking at 3356N 1620E. There was one dead and thirty-three survivors.[1]
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