Type 4 Ha-To
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|Type 4 Ha-To|
Type 4 Ha-To self-propelled mortar
|Place of origin||Empire of Japan|
|Type 3 300mm mortar|
|Engine||water-cooled 6cyl Mitsubishi gasoline|
History and design
The Type 4 Ha-To was conceived as a mobile fire support platform in late 1943, making use of the already existing Type 3 300 mm heavy mortar on a chassis based an extensively modified Type 4 Chi-To medium tank. The mortar had a range of 3,000 m (1.9 mi) and launched a 170 kg (374 lb) projectile. The gun itself weighed close to 1.5 tons, and to keep the center of gravity from shifting and tipping the vehicle over, it could not be elevated more than 50 degrees.
The first prototype was completed in late 1944 and taken to the Imperial Japanese Army Academy for testing. Although testing indicated that it would be an effective weapon, it was expensive to produce, and the Japanese Army Technical Bureau shifted its attention to self-propelled multiple rocket launchers instead.
- Trewhitt, Philip (1999). Armoured Fighting Vehicles. 108: Dempsey-Parr. ISBN 1-84084-328-4.
- Zaloga, Steven J. (2007). Japanese Tanks 1939-45. Osprey. ISBN 9781846030918.
- Japanese Wikipedia article
- Taki's Imperial Japanese Army Page
- Trewhitt, Armoured Fighting Vehicles