| Career (Russia) | |
|---|---|
| Name: | AG 12 |
| Builder: | Electric Boat Company |
| Completed: | 1916 |
| Fate: | scuttled 3 April 1918 |
| Career (Finland) | |
| Name: | AG 12 |
| Commissioned: | not commissioned |
| Fate: | scrapped; beyond repair |
| General characteristics | |
| Type: | AG-type diesel-powered submarine |
| Displacement: | 355 long tons (361 t) surfaced 433 long tons (440 t) submerged |
| Length: | 150 ft 3 in (45.80 m) |
| Beam: | 16 ft (4.9 m) |
| Draught: | 12 ft 6 in (3.81 m) |
| Propulsion: | 2 shafts 2 diesel engines (480 bhp (360 kW)) 2 electric motors (640 hp (480 kW)) |
| Speed: | 13 knots (24 km/h; 15 mph) (surfaced) 10.5 knots (19.4 km/h; 12.1 mph) (submerged) |
| Range: | 1,750 nmi (3,240 km; 2,010 mi) at 7 knots (13 km/h; 8.1 mph) (surfaced) 25 nmi (46 km; 29 mi) at 3 knots (5.6 km/h; 3.5 mph) (submerged) |
| Test depth: | 50 metres (160 ft) |
| Complement: | 30 |
| Armament: | 4 × bow 17.9-inch (455 mm) torpedo tubes (8 torpedoes) 1 × 47-millimetre (1.9 in) gun |
Finnish submarine AG 12 was a Russian submarine of Holland 602GF/602L type (AG = Amerikansky Golland), which served in the Gulf of Finland during the first World War.
During World War I Russian and British submarines operated from bases in Finland. The Russian submarines of Holland type (AG 11, AG 12, AG 15 and AG 16) were scuttled in the harbor of Hanko on April 3, just prior to the German landing there. These submarines had good sea going qualities and were easy to handle. When the German troops advanced on Helsinki, the British submarine group sailed out and scuttled their submarines outside the city, on April 4, 1918. The Squadron consisted of the submarines E 1, E 8, E 9, E 19, C 26, C 27 and C 35. The British crews could return to Britain via Murmansk.
Two of the Russian subs, the AG 12 and the AG 16, seemed to be in relatively good shape and the Finns decided to lift them and to repair them. After salvaging, the AG 12 was transferred to Turku and the AG 16 to Helsinki. AG 12 was however a hopeless case and was soon scrapped.
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