Ho-1 cannon

{{short description|20 mm autocannon}}

{{Use British English|date=April 2017}}

{{Infobox weapon

|name=Ho-1 cannon

| image= AT rifle Type 97 1.JPG

| image_size = 300

|caption= A Type 97 20 mm anti-tank rifle, the base for the Ho-1 cannon.

|origin = Empire of Japan

|type= Aircraft autocannon

|is_ranged=yes

|is_bladed=

|is_explosive=

|is_artillery=

|is_vehicle=

|is_UK=yes

|service=

|used_by= Imperial Japanese Army Air Service
Imperial Japanese Navy Air Service

|wars=World War II

|designer=

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|weight={{convert|34|kg|lb|abbr=on}}

|length={{convert| 1749|mm|in|abbr=on}}

|part_length={{convert|1194|mm|in|abbr=on}}

|width=

|height=

|crew=

|cartridge=20x125mm (127)

|caliber={{convert|20|mm|in|abbr=on}}

|action=Short recoil-operated

|rate= 300-400 rounds/min

|velocity={{convert|820|m/s|abbr=on}}

|range=

|max_range=

|feed= 15-round box magazine

|sights=

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}}

Ho-1 was a Japanese autocannon used during World War II, it was a Type 97 20 mm anti-tank rifle adapted for use in bomber turrets.{{cite web|title=Japanese Army Aircraft Weapons|url=http://www.gunsight.jp/b/english/data/ja-gun-e.htm|publisher=www.gunsight.jp|accessdate=19 March 2013}}