Japanese submarine I-174

History
Empire of Japan
Name	I-74
Ordered	1934
Builder	Sasebo Naval Arsenal, Sasebo, Japan
Laid down	16 October 1934
Launched	28 March 1938
Commissioned	15 August 1938
Renamed	I-174 on 20 May 1942
Fate	Sunk 12 April 1944
Stricken	10 June 1944
General characteristics
Class and type	Kaidai type (KD6B Type)
Displacement	1,839 tonnes (1,810 long tons) surfaced 2,605 tonnes (2,564 long tons) submerged
Length	105 m (344 ft 6 in)
Beam	8.2 m (26 ft 11 in)
Draft	4.57 m (15 ft 0 in)
Installed power	9,000 bhp (6,700 kW) (diesels) 1,800 hp (1,300 kW) (electric motors)
Propulsion	Diesel-electric 2 × diesel engines 2 × electric motors
Speed	23 knots (43 km/h; 26 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range	10,000 nmi (19,000 km; 12,000 mi) at 16 knots (30 km/h; 18 mph) surfaced 65 nmi (120 km; 75 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth	75 m (246 ft)
Complement	70
Armament	6 × 533 mm (21 in) torpedo tubes (4 bow, 2 stern) 1 × 120 mm (4.7 in) deck gun 2 × single 13.2 mm (0.52 in) anti-aircraft machinegun

I-74, later I-174, was an Imperial Japanese Navy Kaidai type cruiser submarine of the KD6B sub-class commissioned in 1938. During World War II, she took part in the attack on Pearl Harbor, the Battle of Midway, the Guadalcanal campaign, the New Guinea campaign, and the Gilbert and Marshall Islands campaign and operated off Australia before she was sunk during her ninth war patrol in 1944.