Type 99 cannon

Type 99 cannon

The Type 99 cannon was adaptated from the Oerlikon FF by the Imperial Japanese Navy and served as their standard aircraft autocannon during World War II.

Type 99 had three models according to loading methods, but two models Type 99 Model 1 (Japanese: Kyū-Kyū Shiki Ichigō Kizyū, Kanji: 九九式一号機銃) and Type 99 Model 2 (Japanese: Kyū-Kyū Shiki Nigō Kizyū, Kanji: 九九式二号機銃) by Imperial Japanese Navy designation. The change in model to lead to a weight increase that is problematic for fighters, but the navy was concerned about the limited ammunition capacity and 60 round drum magazines became 100 round magazines, and were eventually replaced with 125 rounds of belt-feed ammo.

Installations

* Aichi B7A
* Kawanishi H6K
* Kawanishi H8K
* Kawanishi N1K-J
* Kyūshū Q1W
* Mitsubishi A6M
* Mitsubishi G3M
* Mitsubishi G4M
* Mitsubishi G6M
* Mitsubishi J2M
* Nakajima G8N
* Nakajima J1N
* Yokosuka P1Y

pecifications (Model 1)

*Caliber: 20 mm
*Ammunition: 20 x 72
*Length: 133 cm (53 in)
*Weight: 23 kg (51 lb)
*Rate of fire: 490 rounds/min
*Muzzle velocity: 760 m/s (2,490 ft/s)

External links

* [http://www.warbirdsresourcegroup.org/IJARG/arm-type99.html Type 99 cannon, www.warbirdsresourcegroup.org]

20mm Gun Table


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