Ho-3 (20 mm)

Description

The 20 mm Ho-3 is a Japanese autocannon. It was identical to the 20 mm Ho-1, except is mounted in a fixed fashion onboard aircraft. Both designs were based off the 20 mm Type 97 anti-tank rifle.

Vehicles equipped with this weapon

• Ki-45 hei
• ␗Ki-45 hei/tei
• Ki-45 ko

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

• Default: FI · HEFI-T · HEF-I · AP-T
• Universal: HEFI-T · HEF-I · AP-T
• Ground targets: AP-T · AP-T · FI · HEF-I
• Tracers: AP-T · HEFI-T
• Stealth: FI · FI · HEF-I · HEF-I

Penetration statistics
Belt	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
Default	34	31	23	15	10	9
Universal	34	31	23	15	10	9
Ground targets	34	31	23	15	10	9
Tracers	34	31	23	15	10	9
Stealth	2	2	2	2	2	2

Comparison with analogues

Give a comparative description of cannons/machine guns that have firepower equal to this weapon.

Usage in battles

The Ho-3 cannons have a fairly low fire RPM of 400, however, they make up for it with decent Default and Universal belts, each with powerful HEFI rounds. They also have good accuracy and velocity, allowing them to be used effectively in a variety of situations.

Pros and cons

Pros:

• Decent accuracy once gun is upgraded
• Good muzzle velocity
• Good default and universal belts
• Good explosive effect with HEFI rounds

Cons:

• Very low rate of fire at 400 RPM

History

Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

• reference to the article about the variant of the cannon/machine gun;
• references to approximate analogues by other nations and research trees.

External links

• [Gunsight.jp] Japanese Army Aircraft Weapons
• [The Pacific War Online Encyclopedia] Japanese 20mm Type 97 Cannon