NAVYPEDIA

Photo

I16  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
伊16 [I16]			Mitsubishi, Kobe	9/1937	28.7.1938	3.1940	sunk 19.5.1944
伊18 [I18]			Sasebo K K	8/1937	12.11.1938	1.1941	sunk 11.2.1943
伊20 [I20]			Mitsubishi, Kobe	11/1937	25.1.1939	9.1940	sunk 3.9.1943
伊22 [I22]			Kawasaki, Kobe	11/1937	23.12.1938	3.1941	sunk 5.10.1942 or 12.11.1942
伊24 [I24]			Sasebo K K	12/1938	12.11.1939	10.1941	sunk 11.6.1943

Technical data

Displacement standard, t	2184
Displacement normal, t	2554 / 3561
Length, m	103.8 pp 107.0 wl 109.3 oa
Breadth, m	9.10
Draught, m	5.35
No of shafts	2
Machinery	2 Kampon diesels / 2 electric motors
Power, h. p.	12400 / 2000
Max speed, kts	23.6 / 8
Fuel, t	diesel oil 245
Endurance, nm(kts)	14000(16) / 60(3)
Armament	1 x 1 - 140/40 11-shiki, 1 x 2 - 25/60 96-shiki, 8 - 533 TT (bow, 20), 1 A-gata midget submarine
Electronic equipment	93-shiki sonar, 93-shiki hydrophone
Complement	95
Diving depth operational, m	100

Standard scale images

Graphics

Project history

Hei-Gata C1 type. Built under 3rd Supplementary programme of 1937. Attack submarines, intended specially for attacks of enemy combat ships. They were designated as "model C" (Hei-Gata) and were created on the basis of Kaidai 6b type fleet submarine, were very similar to B type submarines, differing, first of all, by armament: number of TTs has increased from 6 to 8, and torpedo stowage was increased to 19-20, TTs took places on four in two separated compartments, arranged one over another. At the expense of abandoning from aviation the gun was transferred to a bow, and deck in an aft part was strengthened for possibility to carry "A" type midget submarine. Double-hulled, endurance was about 90 days.

Modernizations

early 1943, I16: was converted to transport submarine; - 1 x 1 - 140/40, torpedoes stowage was decreased; + 1 14m Daihatsu-type landing craft, deck cargo

1943-44, some survived: + 2-shiki 2-go radar

Naval service

I22 was lost after 5.10.1942 off Malaita (Solomons), under miscellaneous versions, she was sunk 5.10.1942 by US aircraft or 12.11.1942 by US MTB РТ122 SW off New Guinea. I18 was sunk 11.2.1943 in Solomons area by seaplane from US cruiser Helena and destroyer Fletcher. I24 was sunk 10.6.1943 NE off Attu by ramming of US patrol craft РС487. I20 after 30.8.1943 was lost, presumably sunk 3.9.1943 NW off Espirito Santo by US destroyer Ellett. I16 was sunk 19.5.1944 in Solomons area by US escort destroyer England.