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The Type 99 Mark 2 was carried by later models of the A6M, starting with the A6M3a Reisen Model 22 Ko, [3] and on later Navy fighters such as the Kawanishi N1K-J. The Model 4 of this weapon adopted the same belt-feed mechanism as the Type 99 Mark 1 Model 4. The Type 99 Mark 2 Model 5 resulted from attempts to increase the rate of fire.
Ho-1 20 mm cannon; Ho-3 20 mm cannon; Ho-5 20 mm cannon (based on Browning) Ho-155 cannon (aka Ho-105) 30 mm cannon (based on Browning) Ho-155-II 30mm cannon; Ho-203 37 mm cannon; Ho-204 37 mm cannon (based on Browning) Ho-301 40 mm cannon (caseless ammunition, sometimes considered a "rocket launcher") Ho-401 57 mm cannon; Ho-402 57 mm cannon
The 30 mm Type 5 cannon was a Japanese Navy autocannon used near the end of World War II. It was an indigenous 30 mm design with better performance than the Navy's earlier Oerlikon-derived Type 2 or the Imperial Army's Browning-derived Ho-155 , although it was considerably heavier.
Had the war continued longer the Ho-155-II would most likely have seen service on the jet-powered Karyu Ki-201. The Ho-155-I was first began development in 1942 as a scaled-up and modified version of the 20mm Ho-5 cannon, [1] itself a scaled-up Model 1921 aircraft .50-inch Browning machine gun.
Within ten years of its introduction, over 300,000 tanegashima firearms were reported to have been manufactured. [4] The first significant development of cannons in Japan occurred during the 1550s, coinciding with the Nanban trade. Portuguese traders introduced two types of breech-loaded cannons to Ōtomo Sōrin. These cannons consisted of a ...
In interviews conducted by the U.S. Naval Technical Mission to Japan after the end of the war, Japanese military personnel said it was the most reliable Japanese anti-aircraft weapon, but second in effectiveness to the 100 mm (3.9 in) Type 98 anti-aircraft gun. [4]
The Type 98 20 mm AA machine cannon was the most common light anti-aircraft gun of the Japanese military. [1] The Type 98 designation was given to this gun as it was accepted in the year 2598 of the Japanese calendar (1938). [5] It entered service that same year and first saw combat in Nomonhan. It was used until the end of World War II. [1]
The Ho-301 was a Japanese 40 millimeter caliber autocannon that saw limited use during World War II, on Japanese Army Nakajima Ki-44 and Kawasaki Ki-45 KAI aircraft. It was unusual in using caseless ammunition. Although the effective range of the cannon was only 150 meters (490 ft), the Ho-301 was light and rapid-firing for its caliber.