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fighting ships of the world

JAPAN MARITIME SELF-DEFENCE FORCE (JAPAN)

SUBMARINES

HAYASHIO submarines (1962)

Hayashio 1965

Name No Yard No Builder Laid down Launched Comp Fate
はやしお <Hayashio> SS521   Shin Mitsubishi, Kobe 6/6/1960 31/7/1961 30/6/1962 discarded 7/1977
わかしお <Wakashio> SS522   Kawasaki, Kobe 7/6/1960 28/8/1961 17/8/1962 discarded 3/1979

 

Displacement standard, t

 

Displacement normal, t

650 / 800

Length, m

59.0

Breadth, m

6.50

Draught, m

4.10 max

No of shafts

2

Machinery

2 Kobe Mitsubishi / Sulzer 6LDA25B diesel-generators, 2 Mitsubishi Electric electric motors

Power, h. p.

1350 / 1700

Max speed, kts

12 / 15

Fuel, t

diesel oil

Endurance, nm (kts) 4000(10) /

Armament

3 - 533 TT (bow, 9)

Sensors

ZPS-2 radar, JQS-2, JQO-3, JQO-4 sonars, ZLR-1 ECM suite

Complement

43

Diving depth operational, m

150

Ship project history: Constructed under the 1959 programme, these boats and their near-sisters, the Natsushio class, were small and limited in capability. They were air-conditioned and had good habitability and a large safety factor. They were modelled after the US Barracuda and were somewhat shorter and thicker than Oyashio. In order to reduce hull resistance, an effort was made to produce a perfect a perfect double hull, external framing was used in order to improve internal space. Attention was paid to improving underwater manoeuvrability, and a 'jostick' was installed for steering. The class used a water pressure system for launching torpedoes, thus eliminating the emission of air bubbles. The main storage batteries were water-cooled.

Modernizations: None.

Naval service: No significant events.

Hayashio 1962

Ivan Gogin, 2016