Russian submarine AG-12

History
Russia
Name	AG-12
Builder	Electric Boat Company
Completed	1916
Fate	Scuttled 3 April 1918
Finland
Name	AG-12
Commissioned	not commissioned
Fate	Scrapped; beyond repair
General characteristics
Type	AG-class 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)
Installed power	2 shafts
Propulsion	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	164 feet (50 m)
Complement	30
Armament	4 × bow 17.9-inch (455 mm) torpedo tubes 8 torpedoes 1 × 47-millimeter (1.9 in) gun

The Russian submarine AG-12 was an AG-class submarine, designed by the American Holland Torpedo Boat Company/Electric Boat Company, built for the Imperial Russian Navy during World War I. The submarine was fabricated in Canada, shipped to Russia and reassembled for service with the Baltic Fleet. She was scuttled by the Russians at Hanko in April 1918.

Attempts were made by the Finns to salvage the vessel: She was raised in 1918 and transferred to Turku for repair, but this proved too costly and she was scrapped.