15.5 cm/60 3rd Year Type naval gun

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15.5 cm/60 3rd Year Type
Aft 155 mm gun turret Yamato 300px.jpg
Aft 155-mm triple turret on Yamato under construction, September 1941
Type Naval gun
Place of origin Japan
Service history
In service 1941-1945
Used by Imperial Japanese Navy
Wars World War II
Weight over 12 metric tons

Shell 55.87 kilograms (123.2 lb)[1]
Caliber 155 millimetres (6.1 in)

The 15.5 cm/60 3rd Year Type gun (60口径三年式15.5cm3連装砲 60 kōkei sannenshiki 15.5 centi sanrensōhō?) was a naval gun used by the Imperial Japanese Navy on the Yamato-class battleships, the Mogami-class cruisers (as completed) and on the light cruiser Ōyodo.


  1. ^ DiGiulian


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