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Japan's Type 4 Ka-Tsu Amphibious

Design

A new design was needed due to the problems the Japanese Navy had in resupplying troops in the Solomons.

Work on the Ka-Tsu started in 1943. Its primary job was to carry cargo from ship to shore.

There were some shields for the crew but the rest of the Ka-Tsu was unarmored.

The engine compartment was hermetically sealed along with the electric final drives. It was intended for the Ka-Tsu to be delivered by submarine.

Kamikaze

Once development was completed there were some in the Japanese Navy who wanted to turn the Ka-Tsus into suicide weapons. The Ka-Tsu was to be armed with two torpedoes. The war ended before they could be deployed.

Prototype

In March 1944 trials were conducted off of Kure.

Sources:

  1. Japanese Tanks 1939-45, Steven J. Zaloga, 2007
20th Century American Military History Crucial Site