12.7 cm/40 Type 89 naval gun

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12.7 cm/40 Type 89 naval gun
Breech		horizontal breech block
Elevation	-8° to +90°[1]
Rate of fire	8-14 rounds per minute
Muzzle velocity	720–725 meters per second (2,360–2,380 ft/s)
Maximum firing range	9,440 meters (30,970 ft) at 90° (AA ceiling) 14,800 meters (48,600 ft) at 45°

The 12.7 cm/40 Type 89 naval gun (40 Kokei Hachikyu Shiki 12 Senchi 7 Kokakuho) was a Japanese anti-aircraft (AA) gun introduced before World War II. It was the Imperial Japanese Navy's standard heavy AA gun during the war.

The Type 89 was adopted by the IJN on February 6, 1932, and was the primary anti-aircraft gun on new aircraft carriers, battleships and cruisers, most commonly installed in twin gun mounts. It was used as the primary armament of the

were replaced with Type 89s.

Notes

References

• Campbell, John (1985). Naval Weapons of World War Two. Annapolis, Maryland: Naval Institute Press.
  ISBN 0-87021-459-4
  .

External links

• 12.7 cm/40 Type 89 on navweaps.com