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. The FF were a series of 20 mm Autocannon introduced by Oerlikon in the late 1920s For Combined Fleet, please see that article For Carrier Striking Task Force, please see that article An autocannon is a rapid fire projectile Weapon. Autocannon often have a larger Caliber (calibre than a Machine gun (i World War II, or the Second World War, (often abbreviated WWII) was a global military conflict which involved a majority of the world's nations, including

Type 99 had three models according to loading methods, but two models Type 99 Model 1 (Japanese: Kyū-Kyū Shiki Itigō 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. is a language spoken by over 130 million people in Japan and in Japanese emigrant communities are the Chinese characters that are used in the modern Japanese logographic writing system along with Hiragana (ひらがな 平仮名 Katakana 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.

Contents 1 Installations 2 Specifications (Model 1) 3 External links 4 20mm Gun Table

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

Specifications (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

• Type 99 cannon, www.warbirdsresourcegroup.org

20mm Gun Table

Name	Cartridge	Projectile weight	Rate of fire	Muzzle velocity	Gun weight
		(grams)	(rpm)	(m/s)	(kg)
France
HS. WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Nakajima J1N1 was a twin-engine aircraft used by the Japanese Imperial Navy during World War II and was used for reconnaissance Night fighter WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout 9	20 x 110RB	122	360-420	830	48
HS.404	20 x 110	130	700	880	60
Germany
MG FF	20 x 80RB	134	520	600	28
MG FF/M	20 x 80RB	92/115	540/520	700/585	28
MG 151/20	20 x 82	92/115	750 - 800	800/720	42
Japanese Army
Type 94 Flexible	20 x 99RB	127	380	675	43
Ho-1	20 x 125	144	400	805	45
Ho-3	20 x 125	144	400	805	45
Ho-5	20 x 94	96	750 - 850	715	37
Japanese Navy
Type 99-1	20 x 72RB	129	490	760	23
Type 99-2	20 x 101RB	128	490	750	34
Great Britain
Hispano Mk.II	20 x 110	130	600	880	50
Hispano Mk.V	20 x 110	130	750	840	42
USSR
ShVAK	20 x 99R	95	800	750 - 770	42
Berezin B-20	20 x 99R	95	800	750 - 770	25
Vya	23 x 152B	200	550	880	69
NS-23	23 x 115	200	550	690	37

The Hispano-Suiza HS404 Autocannon was one of the most widely used aircraft weapons of the 20th century used by British, American The MG FF was a drum-fed 20 mm aircraft Autocannon, developed in 1936 by Ikaria Werke Berlin of Germany. The MG FF was a drum-fed 20 mm aircraft Autocannon, developed in 1936 by Ikaria Werke Berlin of Germany. The MG 151 (MG 151/15 was a 15 mm Autocannon produced by Waffenfabrik Mauser starting in 1940 Ho-1 was a Japanese Autocannon used during World War II. It was a Type 97 20 mm AT Rifle adopted for use in bomber turrets Ho-3 was a Japanese Autocannon used during World War II. It was a drum-fed improvement of the magazine-fed Ho-1 cannon, itself derived from the Type The Ho-5 (Army Type 2 was a Japanese aircraft Autocannon used during World War II. The Hispano-Suiza HS404 Autocannon was one of the most widely used aircraft weapons of the 20th century used by British, American The Hispano-Suiza HS404 Autocannon was one of the most widely used aircraft weapons of the 20th century used by British, American The ShVAK (ШВАК Шпитальный-Владимиров Авиационный Крупнокалиберный Shpitalnyi-Vladimirov Aviatsionnyi Krupnokalibernyi, "Shpitalny-Vladimirov The Berezin B-20 (Березин Б-20 was a 20 mm caliber Autocannon used by Soviet aircraft in World War II. Volkov-Yartsev VYa-23 (Волков-Ярцев ВЯ-23 is a 23 mm Autocannon used on Soviet aircraft during World War II. The NS-23 was a 23 mm aircraft cannon designed by A E Nudelman, A

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