japanese submarine japanese submarine originally type cruiser submarine sub class built imperial_japanese_navy 1940s lost hands valve accidentally left open sea trials july wreck later salvaged scrapped design description submarines sub class medium range attack submarines developed preceding sub class displaced metric tons long tons surfaced metric tons long tons submerged submarines meters long beam meters draft meters boats diving depth complement officers crewmen surface running boats powered brake horsepower diesel engines driving propeller shaft submerged propeller driven horsepower electric motor reach knots mph surface knots mph underwater surface range nautical miles knots mph submerged range nmi knots mph boats armed internal torpedo tubes bow carried tube total dozen torpedoes originally intended armed twin gun mounts type anti aircraft gun deck gun combat surface substituted mount construction construction career built shipyard laid august submarine renamed november boat launched july completed june conducting sea trials july sank loss officers crewmen wreck located days later depth meters bow tank vent valve open struck navy list april wreck salvaged april march scrapped
Japanese submarine I-179