vintage Medium Mark A Whippet – British World War I vintage Renault FT-17 "Ko" light tank – World War I vintage Renault NC27 "Otsu" light tank M3 light tank – captured Experimental Tank – Number 1 – 1st prototype leading to the Type 89 I-Go Type 89 I-Go Type 91 heavy tank – 2nd prototype leading to Type 95 heavy tank Type 95 heavy tank – multi-turret tank; four prototypes completed Ji-Ro Sha SPG – Type 95 heavy tank hull, 105 mm cannon Hi-Ro Sha SPG (also known as Hiro-sha) – Type 95 heavy tank hull, 150 mm cannon Type 95 Ha-Go (also known as Type 95 Ke-Go or Type 95 Kyu-Go) Type 98 Ke-Ni (also known as Type 98 Chi-Ni) – major improvement of Type 95 Ha-Go Type 2 Ke-To – variant of Type 98 Ke-Ni with improved 37 mm cannon Type 98 Ta-Se – prototype 20 mm Anti-Aircraft tank with Type 98 Ke-Ni hull Type 98 20 mm AAG tank – prototype with Type 98 Ke-Ni hull and twin Type 2 20 mm AA machine cannons Special Number 3 Light Tank Ku-Ro – airborne tank carried by glider Ku-6 (early development version known as So-Ra) Type 3 Ke-Ri – Type 95 Ha-Go tank with 57 mm main gun. Prototype failed army trials in 1943 Type 4 Ke-Nu – Ha-Go hull with a 57 mm main gun in a Chi-Ha turret Type 4 Ho-To SPG – prototype with a Ha-Go hull fitted with Type 38 12 cm howitzer Type 5 Ho-Ru SPATG – prototype based on modified hull of the Ha-Go with a Type 1 47 mm tank gun Type 97 Chi-Ha – with Type 97 57 mm tank gun; the most advanced Japanese tank available in numbers at start of the Pacific War Type 97 Shinhoto Chi-Ha – Chi-Ha hull with an enlarged turret and production model Type 1 47 mm tank gun Type 1 Ho-Ni I SPG (tank destroyer) – Chi-Ha hull with Type 90 75 mm field gun Type 1 Ho-Ni II SPG (tank destroyer) – Chi-Ha hull with Type 91 10 cm howitzer Type 3 Ho-Ni III SPG (tank destroyer) – Chi-Ha hull with Type 3 75 mm tank gun, same as Type 3 Chi-Nu tank Type 2 Ho-I Infantry support tank – Type 41 75 mm mountain gun on hull of Chi-Ha Type 4 Ho-Ro SPG – Chi-Ha hull with Type 38 15 cm