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Ch-7 Class, Japanese Submarine Chasers


Photograph of Ch-7 class submarine chaser

Wikimedia Commons


Specifications:


Tonnage
291 tons standard
Dimensions
184'5" by 18'4" by 7'4"
56.21m by 5.59m by 2.24m
Maximum speed       20 knots
Armament
2 40mm AA guns
36 depth charges
Machinery
2-shaft diesel (2600 bhp)
Modifications
1944-1945: 3 25mm/60 AA guns and Type 13 radar added


The Ch-7s were completed in 1939 as submarine chasers. They were very similar to the Ch-1s and were used as fast attack transports during the early days of the Pacific War. The class is named after the first unit completed.


Units in the Pacific:

Ch-4     
Subchaser Division 21     

Ch-5
Subchaser Division 21
Ch-6

Beached after air attack 1944-3-30 at Palau
Ch-7
Subchaser Division 11
Sunk by aircraft 945-4-11 in the Nicobar Islands
Ch-8

Sunk 1945-3-4 off Penang by gunfire from Trenchant and Terrapin
Ch-9
Subchaser Division 11
Ch-10
Subchaser Division 31
Grounded 1944-5-2 at Palau
Ch-11

Sunk by aircraft 1943-11-6 off Buka
Ch-12
Subchaser Division 31 Lost to unknown cause 1944-8 at Palau

References

CombinedFleet.com (accessed 208-2-1)

Jentschura, Jung, and Mickel (1977)

Morison (1948)

Worth (2001)



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