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Type 98 (Ko-Hi)


Self-Propelled Anti-Aircraft Half Track Vehicle


Imperial Japan | 1942



"The Type 98 20mm AA attempted to mate a 20mm Type 2 gun with the Type 98 half-track chassis."



Authored By: Staff Writer | Last Edited: 06/02/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Type 98 "Ko-Hi" halftrack was developed by the Isuzu concern as a self-propelled air defense artillery system for use by the Imperial Japanese Army during World War 2. Taken collectively, the Type 98 AA system consisted of two major components designed to work in unison - the Type 98 half-track mover and the Type 2 anti-aircraft cannon system. The intent of the system was to provide a mobile-minded, fire-support vehicle for the protection of columns and key areas against low-flying enemy aircraft. If networked and operated properly, such systems could create an umbrella of defense against inbound aerial threats. The Type 98 Ko-Hi maintained an "experimental" status during its short tenure.

The Type 98 half-track vehicle consisted of a two-wheeled front axle with a tracked rear system. Half-tracks, in general, allowed for increased payload function across uneven or soft terrains while keeping speed with the main mechanized force. In fact, the base Type 98 form was considered a high-speed prime mover by the IJA, capable of maintaining up to 25 mile per hour speeds in ideal conditions when on a full load. The cab for the driver and a passenger was situated just behind the engine compartment, with vision provided for through a forward windscreen with open-air sides. A canvas roof was typically added for protection against the elements but there was little point defense available to the crew. The area to the rear of the cab was a flat bed designed to accept the Type 2 gun system. Power was supplied by a single V8 air-cooled, gasoline-fueled engine developing upwards of 130 horsepower and driving a tracked layout by way a drive sprocket with integrated road wheels. The chassis was set upon a bell crank suspension system and sported a length of 12.4 feet with a 6 foot width. The Type 98 was termed a 4-ton vehicle in IJA classification.

The Type 2 20mm anti-aircraft gun mount was nothing more than a single-barreled cannon (termed a "machine cannon" by the Japanese) designed to utilize timed-fuse projectiles intended for demolition of enemy aircraft. The gun was designed with an attack elevation limitation of -15 to +95 degrees. On its gun mount atop the rear section of the Type 98 half-track, the Type 2 could field a 360-degree firing arc, able to attack enemy aircraft at any incoming angle regardless of the directional facing of the half-track itself. Rate-of-fire was listed at 300 rounds per minute with a range out to 11,500 feet - though a maximum of 18,000 feet was possible though with reduced effectiveness. The gun itself was derived from the German FlaK 38 series as the German and Japanese governments maintained a working relationship during the war. The Type 2 weighed in at 1,200lbs which made the use of a half-track vehicle logical as its mover. The weapon system saw service beginning in 1942.

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Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the Type 98 (Ko-Hi) Self-Propelled Anti-Aircraft Half Track Vehicle.
1 x V8 air-cooled gasoline engine delivering 130 horsepower.
Installed Power
25 mph
40 kph
Road Speed
Structure
The physical qualities of the Type 98 (Ko-Hi) Self-Propelled Anti-Aircraft Half Track Vehicle.
6
(MANNED)
Crew
12.4 ft
3.78 meters
O/A Length
5.9 ft
1.8 meters
O/A Width
7.2 ft
2.19 meters
O/A Height
8,818 lb
4,000 kg | 4.4 tons
Weight
Armament & Ammunition
Available supported armament, ammunition, and special-mission equipment featured in the design of the Type 98 (Ko-Hi) Self-Propelled Anti-Aircraft Half Track Vehicle.
1 x 20mm Type 2 cannon
AMMUNITION:
Dependent on ammunition carrier.
SPECIAL EQUIPMENT:
Nightvision - NONE
Chemical, Biological, Radiological, Nuclear Protection (CBRN) - NONE
Variants
Notable series variants as part of the Type 98 (Ko-Hi) family line.
Type 98 20mm - Base Series Designation; experimental status.
Operators
Global customers who have evaluated and/or operated the Type 98 (Ko-Hi). Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 0 Units

Contractor(s): Isuzi - Imperial Japan
National flag of modern Japan

[ Imperial Japan ]
1 / 1
Image of the Type 98 (Ko-Hi)
LEft side view of the Type 98 Ko-Hi half-track with 20mm gun mount

Design Qualities
Some designs are single-minded in their approach while others offer a more versatile solution to battlefield requirements.
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Type 98 (Ko-Hi) Self-Propelled Anti-Aircraft Half Track Vehicle appears in the following collections:
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