Ho-1 was a Japanese autocannon used during World War II, it was a Type 97 20 mm anti-tank rifle adapted for use in bomber turrets.[1]

Ho-1 cannon
A Type 97 20 mm anti-tank rifle, the base for the Ho-1 cannon.
TypeAircraft autocannon
Place of originEmpire of Japan
Service history
Used byImperial Japanese Army Air Service
Imperial Japanese Navy Air Service
WarsWorld War II
Specifications
Mass34 kg (75 lb)
Length1,749 mm (68.9 in)
Barrel length1,194 mm (47.0 in)

Cartridge20x125mm (127)
Calibre20 mm (0.79 in)
ActionShort recoil-operated
Rate of fire300-400 rounds/min
Muzzle velocity820 m/s (2,700 ft/s)
Feed system15-round box magazine

Fixed or not

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The cannon when fixed was known as the Ho-3,[2] compared to its flexible brother the Ho-3 was fed with a 50-round double drum, while the Ho-1 was fed by a 15-round magazine.[1]

Specifications

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  • Caliber: 20 mm (0.8 in)
  • Ammunition: 20 x 125 (164 g) Armor-piercing tracer or high-explosive incendiary[1]
  • Weight: 33 kg (72 lb)[1]
  • Rate of fire: 300-400 rounds/min
  • Range 900 m
  • Muzzle velocity: 820 m/s (2,690 ft/s)

References

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  1. ^ a b c d "Japanese Army Aircraft Weapons". www.gunsight.jp. Retrieved 19 March 2013.
  2. ^ "Japanese 20mm Type 97 Cannon". pwencycl.kgbudge.com. Retrieved 19 March 2013.