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I175  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
伊74 [I74], 5.1942- 伊174 [I174]			Sasebo K K	10/1934	28.3.1937	8/1938	sunk 12.4.1944
伊75 [I75], 5.1942- 伊175 [I175]			Mitsubishi, Kobe	11/1934	16.9.1937	12/1938	sunk 4.2.1944

Technical data

Displacement standard, t	1420
Displacement normal, t	1810 / 2564
Length, m	98.4 pp 102.6 wl 105.0 oa
Breadth, m	8.20
Draught, m	4.60
No of shafts	2
Machinery	2 Kampon diesels / 2 electric motors
Power, h. p.	9000 / 1800
Max speed, kts	23 / 8
Fuel, t	diesel oil 230
Endurance, nm(kts)	14000(10) / 65(3)
Armament	1 x 1 - 120/45 11-shiki, 1 x 2 - 13.2/76, 6 - 533 TA (4 bow, 2 stern, 14)
Electronic equipment	93-shiki sonar, 93-shiki hydrophone
Complement	60 - 84
Diving depth operational, m	80

Standard scale images

Graphics

Project history

Kaidai 6b (Large Admiralty 6b) type. Built under 2nd Supplementary program of 1934. Repeated Kaidai 6a type and differed by some larger diving depth.

Modernizations

early 1943, I174: was converted to transport submarine; - 1 x 1 - 120/45, torpedoes stowage was decreased; + 1 14m Daihatsu-type landing craft and deck cargo

Naval service

I175 was sunk 4.2.1944 in Marshall Islands area by US destroyer Charette and escort destroyer Fair. I174 was sunk 12.4.1944 off Truk by US aircraft.