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Japan
Medium Tank Type 89 (I-GO-OTSU)

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The Medium Tank Type 89 was designed in 1928, manufactured by Mitsubishi and was in use from 1929 to 1945.

Flag of World War 2 Japan
Photo of Medium Tank Type 89 (I-GO-OTSU)

General Details
Specifications
Operational Date(s)1929 - 1945
Quantity Produced113
Weight12.79 tonne
Crew4
M.G's small2
M.G's large(>10mm)n/a
Length5.78 mtr
Width2.21 mtr
Height2.61 mtr
Engine Details/Performance
Max Road Speed16 mph
Max Cross Country Speed8 mph
Range Road110 miles
Range Cross Country44 miles
Fuel TypeDiesel
Fuel Capacityunknown
Horse Power120 hp
Power/Weight9 hp/tonne
General Information
The Medium Tank Type 89 was designed in 1928, manufactured by Mitsubishi and was in use from 1929 to 1945.

The vehicle was powered by Mitsubishi 'A6120VD' diesel powerplant producing 120 HP which could drive the vehicle on roads at up to 16 mph with a range of about 110 miles before refuelling. Its cross country performance was adequate providing a max speed of about 8 mph and a range of about 44 miles.

It was armed with 2 light machine guns.

Armour Details
Turret
Front17mm@15°(18mm)
Side15mm@15°(16mm)
Rear15mm@(15mm)
Top10mm@90°(10mm)
Superstructure
Front17mm@37°(21mm)
Side17mm@(17mm)
Rear17mm@60°(34mm)
Top10mm@80°(10mm)
Hull
Front17mm@60°(34mm)
Side17mm@(17mm)
Rear17mm@60°(34mm)
Top10mm@80°(10mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 34 mm - Minimum 10 mm

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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