Type 98 20 mm AA half-track vehicle

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 machine cannon mounted on the back section of a Type 98 Ko-Hi half-tracked prime mover. The Type 98 Ko-Hi half-track was first manufactured in 1938.

The Type 98 half-tracks were considered "high speed" prime movers, capable of 30 mph when loaded. It was powered by a diesel engine and had a crew of 15. The rear-mounted Type 98 20 mm AA autocannon was the most common light anti-aircraft gun of the Imperial Japanese Army. It had a range of 5,500 m, altitude of 3,500 m and could fire up to 300 rounds per minute. The Type 98 20 mm AA half-track vehicle was not mass produced.