French submarine Lagrange

Lagrange

Lagrange between 1922 and 1923
History
France
Name	Lagrange
Namesake	Joseph-Louis Lagrange
Builder	Arsenal de Toulon
Laid down	1913
Launched	31 May 1917
Completed	February 1918
Commissioned	February 1918
Out of service	July 1935
Fate	Stricken and sold for scrap in 1935
General characteristics
Type	Submarine
Displacement	920 tonnes (905 long tons) (surfaced) 1,318 tonnes (1,297 long tons) (submerged)
Length	75.2 m (246 ft 9 in)
Beam	6.3 m (20 ft 8 in)
Draught	3.6 m (11 ft 10 in)
Propulsion	2 × diesel engines, 2,600 hp (1,939 kW) 2 × electric motors, 1,640 hp (1,223 kW)
Speed	16.5 knots (30.6 km/h) (surfaced) 11 knots (20 km/h) (submerged)
Range	4,300 nautical miles (8,000 km) at 10 knots (19 km/h) 125 nautical miles (232 km) at 5 knots (9.3 km/h) (submerged)
Test depth	50 m (160 ft)
Complement	47
Armament	8 × 450 mm (17.7 in) torpedo tubes 2 × 75 mm (3.0 in) deck guns 2 × 8 mm (0.31 in) machine guns

The French submarine Lagrange (Q112) was a Lagrange-class submarine built for the French Navy built between 1913 and 1918. It was laid down in the Arsenal de Toulon shipyards and launched on August 12, 1919. Lagrange was completed in 1918 but saw no action during World War I and served in the French Marine Nationale until 1935.