NAVYPEDIA

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I202  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
伊201 [I201]			Kure K K	3/1944	22.7.1944	2.1945	surrendered 8.1945, to USA, BU 1946
伊202 [I202]			Kure K K	4/1944	2.9.1944	2.1945	surrendered 8.1945, scuttled 5.4.1946
伊203 [I203]			Kure K K	4/1944	20.10.1944	5.1945	surrendered 8.1945, to USA, BU 1946
伊204 [I204]			Kure K K	4/1944	16.12.1944	---	cancelled 3.1945, sunk incomplete 22.6.1945
伊205 [I205]			Kure K K	5/1944	15.2.1945	---	cancelled 3.1945, BU 7.1948
伊206 [I206]			Kure K K	5/1944	26.3.1945	---	cancelled 3.1945, BU 11.1946
伊207 [I207]			Harima Zosen, Harima	12.1944	---	---	cancelled 3.1945, BU 4.1946
伊208 [I208]			Harima Zosen, Harima	2.1945	---	---	cancelled 3.1945, BU 4.1946

Technical data

Displacement standard, t	1070
Displacement normal, t	1291 / 1450
Length, m	76.0 pp 78.5 wl 79.0 oa
Breadth, m	5.80
Draught, m	5.46
No of shafts	2
Machinery	2 MAN diesels / 4 electric motors
Power, h. p.	2750 / 5000
Max speed, kts	15.8 / 19
Fuel, t	diesel oil 95
Endurance, nm(kts)	5800(14) / 135(3)
Armament	2 x 1 - 25/60 96-shiki, 4 - 533 TT (bow,10)
Electronic equipment	2-shiki 2-go radar, 93-shiki sonar, 93-shiki hydrophone, E27 ECM suite
Complement	31
Diving depth operational, m	110

Standard scale images

Graphics

Project history

Sen-Taka (Fast submarine) type. Most perfect Japanese submarines of the Second World War. The same ideas that have led to occurrence in Germany of "elektro-booten" of XXI series are put in a basis of their construction. At their designing experience of creation and service of experimental submarine No71 was used. Double-hulled, outer hull was fulfilled streamlined for submerged resistance decrease. With the same purpose AA MGs were mounted on retractable mounts. At building the section method of assemblage was used. Hull was welded. Specially for this type accumulator batteries of the raised capacity have been created. Submarines were equipped with snorchel. Endurance was 25 days. In comparison with similar German, Japanese submarines had less dimensions, were faster, but yielded to them on an endurance both in surfaced, and in submerged position. With maximum submerged speed of 19kts Sen-Taka could move within 55 minutes then battery recharge was required.

Under the 1943/44 War programme 23 submarines of this type were ordered (I201-223). Actually only 8 submarines were laid down. In March, 1945 completion of I204-208 was suspended at availability of 90% (I204), 85% (I206), 80% (I205), 20% (I207) and 5% (I208). Then an order on the remained 15 boats of this programme (I209-223) was cancelled. Ordered for Nos I-LXXVI were never given out.

Modernizations

None.

Naval service

Incomplete I205 was sunk 19.3.1945 in a dry dock (the caisson gate is wrecked) in Kure by US carrier aircraft. Dock was unwatered and repair of submarine has begun, but 28.7.1945 she was again hard damaged by US carrier aircraft. She was handed over on demolition in 1948. I204 was sunk 22.6.1945 at Kure at raid of US Army aircraft, subsequently she was raised and handed over on demolition. I206, I207 and I208 are taken apart in 1946. I202 was scuttled by Americans 5.4.1946.