Type 98 20 mm AA half-track vehicle

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Type 98 20 mm AA half-track
Type 98 Ko-Hi AA Halftrack.jpg
Place of originEmpire of Japan
Mass4 ton
Length12 ft 5 in (3.78 m)
Width6 ft 1 in (1.85 m)
Height7 ft 3 in (2.21 m)

Type 98 20 mm AA machine cannon
Engineair-cooled diesel gasoline
110 ps
Power/weight32.5 HP/tonne
Suspensionbell crank
200 km
Maximum speed 25 mph (40 km/h)

The Type 98 20 mm AA half-track vehicle was an experimental Japanese self-propelled anti-aircraft gun. It had a single 20 mm Type 98 AA cannon mounted on the back section of a Type 98 4-ton half-track. The modified vehicle used was designated the Type 98 Half-tracked Prime Mover Ko-Hi.[1] The Type 98 Ko-Hi was first manufactured in 1938[1] by Isuzu.

The Type 98 4-tonners were "high speed" prime movers, capable of 25 mph when loaded. Average transport time was 10 hours road time for 125 miles. It had a diesel engine and was manned by a crew of 15 men.[1] The rear mounted Type 98 20 mm AA autocannon was the most common light anti-aircraft gun of the Imperial Japanese Army.[2] It had a range of 5,500 meters, altitude of 3,500 meters and could fire up to 300 rounds per minute.[3]

See also[edit]


  1. ^ a b c Taki's Imperial Japanese Army: Type 98 Half-tracked Prime Mover "Ko-Hi"
  2. ^ War Department TM-E-30-480 Handbook on Japanese Military Forces September 1944, p. 400.
  3. ^ Taki's Imperial Japanese Army: Type 98 20mm AA Machine Cannon