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FIGHTING SHIPS OF THE WORLD
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COASTAL FORCES
OJR1 submarine chasers (1941-1942)


Photo



H8

Ships


Names Builders Completed Losses Transfers Discarding

OJR1 - 6

H7, 8

Higgins, New Orleans, USA: OJR1 - 6, H7, 8

12/1941: OJR1 - 4

2/1942: OJR5, 6

8/1942: H7, 8

OJR1 (2.3.1942), OJR2 (2.3.1942), OJR3 (2.3.1942), OJR4 (2.3.1942), OJR5 (2.3.1942), OJR6 (2.3.1942)

None

1/1946: H7, 8



Technical data


Displacement standard, t

48

Displacement full, t 
Length, m21.3
Breadth, m5.02
Draught, m1.42 deep load
No of shafts

OJR1 - 6: 4

H7, 8: 2

Machinery

OJR1-6: 4 petrol engines

H7, 8: 2 petrol engines

Power, h. p.2600
Max speed, kts

24

Fuel, t

petrol

Endurance, nm(kts) 
Armament

OJR1 - 6: 2 x 1 - 12.7/90, 2 DCR (16)

H7, 8: 1 x 1 - 20/70 Mk 4, 2 x 1 - 12.7/90, 2 DCT (16)

Electronic equipmentpresumably QCU sonar
Complement12


Graphics


<i>H8</i>
H8


Project history

Ordered for service in the Dutch East Indies, built by Higgins in New Orleans in MTB hulls, but with less powerful motors and replacement of torpedoes by anti-submarine armaments. Boats were transferred to Surabaya onboard of merchant vessels (last two carried, OJR5 and 6, were never commissioned).

Modernizations

None.

Naval service

One of them (OJR1 or OJR4) was raised by Japanese and commissioned by IJN as auxiliary chaser Cha111, she was lost 8.4.1945.

H8