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Type 4 20 mm twin AA machine cannon was an Imperial Japanese Army (IJA) anti-aircraft gun. It consisted of two Type 98 20 mm AA machine cannon. It was introduced in 1944 and approximately 500 to 616 guns were produced. [1] [2] [3] It was mainly designed for use against ground targets, but was only used in an anti-aircraft role. [4]
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.
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 heavy barrel mounted on a swivel and were loaded from the breech, with powder and shot inserted through a separate ...
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; Type 88 75 mm ...
Towards the end of the war it developed a preference for installing the Type 99 Mark 2, presumably to counter the improving performance and ruggedness of US combat aircraft. The Type 99 cannon suffered from relatively low muzzle velocity and rate of fire compared to other 20mm cannons but the trade off was an extremely light cannon that did not ...
Yokosuka P1Y "Frances" shot down next to USS Ommaney Bay (CVE-79) by 0945 on December 15, 1944. [4]The first flight was in August 1943. Nakajima manufactured 1,002 examples, which were operated by five Kōkūtai (Air Groups), and acted as land-based medium and torpedo bombers from airfields in China, Taiwan, the Mariana Islands, the Philippines, the Ryukyu Islands, Shikoku, and Kyūshū.
The Ho-5 (Army Type 2) was a Japanese aircraft autocannon used during World War II. Developed from the Ho-103 machine gun, it was a version of the American Model 1921 Browning aircraft machine gun. It replaced the Ho-1 and Ho-3 (Army Type 97) in general service. The Ho-5 was belt-fed using typical Browning-style steel disintegrating links.
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 96 was most effective when used at ranges of 1,000 meters or less.