List of Japanese military equipment of World War II
Name Caliber ( mm ) Eff . alt From ( year ) Estimated quantity Mass ( kg ) Fire rate ( RPM ) Note/s
QF 3.7-inch AA gun Mk1 94 7300 1941 0 9317 15 captured from British
Type 11 75 6650 1922 44 2061 5~ used as railroad gun and in home islands fortresses
Type 14 100 10500 1925 70 5194 5~ civil defense in Kyushu only
Type 10 120 10065 1927 2000 7800 11 cheap coastal defense tool , dual-purpose
Type 88 75 7250 1928 2000 2740 18 based on QF 3-inch 20 cwt design , mainstay of civil defense
Type 89 naval gun 127 9439 1932 1306 20300 11 standard heavy AA gun of IJN
Type 99 88 10420 1938 1000 6500 15 2nd most produced after Type 88 for civil defense
8 cm/40 3rd Year Type naval gun 76.2 5400 1914 69 2600 13 dual-purpose naval gun , during World War II used on gunboats and for civil air defense
Type 3 12cm 120 13000 1944 120 19800 20 the only mass-produced Japanese weapon effective against B-29
Type 4 75 10000 1944 70 5850 10 reverse-engineered Bofors gun captured from Chinese , intended to replace Type 88 , modified as Type 5 75 mm Tank Gun
Type 5 149.1 16000 1945 2 9200 10 had a fire-control electronic computer
Anti-aircraft weapons -- Medium & heavy anti-aircraft guns
The following is a list of Japanese military equipment of World War II which includes artillery, vehicles and vessels, and other support equipment of both the Imperial Japanese Army (IJA), and Imperial Japanese Navy (IJN) from operations conducted from 1937 through 1945. The Empire of Japan forces conducted operations over a variety of geographical areas and climates from the frozen North of China bordering Russia during the Battle of Khalkin Gol (Nomonhan) to the tropical jungles of Indonesia. Japanese military equipment was researched and developed along two separate procurement processes, one for the IJA and one for the IJN. Until 1943, the IJN usually received a greater budget allocation, which allowed for the Super Battleships, advanced aircraft such as the Mitsubishi A6M series, and the world's largest submarines. In addition, a higher priority of steel and raw materials was allocated to the IJN for warship construction and airplane construction. It changed to a degree in 1944/45, when the homeland became increasingly under direct threat, but it was too late. Therefore, during the prior years the Imperial Japanese Army suffered by having a lower budget allocation and being given a lower priority as to raw materials, which eventually affected its use of equipment and tactics in engagements during World War II. A majority of the materials used were cotton, wool, and silk for the fabrics, wood for weapon stocks, leather for ammunition pouches, belts, etc. But by 1943 material shortages caused much of the leather to be switched to cotton straps as a substitute. See also List of weapons of World War II Japanese aircraft#Army aircraft (IJA)