Country of Origin : Germany Role : Coastal Submarine First Laid Down : September 1939 First Commisioned : January 1941 Manufacturer : Deutsche Werke A.G. (Kiel) Number Produced : 16 Boats in Class : U-137 to U-152 Crew : 24 Length : 43.97 meters Beam : 4.92 meters Draught : 3.93 meters Height : 8.4 meters Surface Displacement : 314 tons Submerged Displacement : 364 tons Surface Speed : 12.7 knots per hour Submerged Speed : 7.4 knots per hour Surface Range : 9000 km @ 8 Knots Submerged Range : 90 km @ 4 Knots Time to Submerge : 25 - 35 seconds Maximum Depth : 150 meters Bow Torpedo Tubes : 3 Bow Torpedoes : 5 Stern Torpedo Tubes : 0 Stern Torpedoes : 0 Mines : 12 TMA (alternate to torpedoes) Deck Guns : None Anti-Aircraft Guns : 1x 20mm LM44U (1200 rounds)