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The was a tank destroyer developed by the Imperial Japanese Army for use during World War II in the Pacific theater. ==History and development== After the start of the Pacific War, units of the Imperial Japanese Army began to encounter advanced Allied medium tanks, such as the M4 Sherman. The Japanese Type 97 Chi-Ha medium tank lacked sufficient armor or armament to deal with this threat, and work was begun on a tank destroyer version.〔Zaloga, ''Japanese Tanks 1939-45'', p. 19〕 The Type 1 Ho-Ni I was developed by using the existing Type 97 chassis and engine, and replacing the gun turret with a 75 mm Type 90 Field Gun mounted in an open casemate with frontal and side armour only. (similar to early German Panzerjäger tank destroyers). The Type 1 Ho-Ni I was designed to operate as self-propelled artillery in the armored divisions at ranges of up to . The design had no provision for a defensive machine gun, which together with the open structure made it very vulnerable in close combat.〔Rickard, J (25 August 2008), ("Type 1 Ho-Ni I Self-Propelled Gun" ) History of War.org〕 The Type 97 chassis, suspension and diesel engine were used unchanged. The 75 mm Type 90 Field Gun, was protected on three sides by 50 mm thick armored plate. Armor overall (one of the weak points of the Type 97) was increased by an additional 16 mm of armor plate. The gun mounting gave ten degrees of traverse and -5 to +25 degrees of elevation. The Type 1 Ho-Ni I carried 54 rounds of ammunition.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Type 1 Ho-Ni I」の詳細全文を読む スポンサード リンク
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