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1B Class, Japanese Cargo Ships


Specifications:


Tonnage 4667 gross register tons
7336 deadweight tons
Dimensions 387'2" by 51'10" by 24'2"
118.0m by 15.8m by 7.36m
Maximum speed       14 knots
Machinery
Coal-fired turbine
Range 7500 nautical miles (12,100 nautical miles) at 11.5 knots


The 1Bs were standardized cargo vessels. The design was standardized by the Ministry of Communications, with assistance from the Navy Ministry, early in 1942, and was based on uniform specifications adopted by several yards prior to the war. The 1Bs were not significantly different from peacetime designs and were intended for economical use after the war.

The bridge structure was amidships and there were five deck hatches for loading and unloading of cargo. The ships had double bottoms and the bridge superstructure was separate from the accomodations.

Production Schedule:

Year Units Completed

1942

5
1943
16


References:

Heal (2003)

Jentschura, Jung, and Mickel (1977)


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