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15.5 cm/60 3rd Year Type naval gun

From Wikipedia, the free encyclopedia

15.5 cm/60 3rd Year Type
Aft 155-mm triple turret on Yamato under construction, September 1941
TypeNaval gun
Place of originJapan
Service history
In service1935–1945
Used byImperial Japanese Navy
WarsWorld War II
Production history
Designed1933
ManufacturerKure Naval Arsenal
No. built80
Specifications
Mass12.7 metric tons (28,000 lb)
Length9.615 metres (31.55 ft)
Barrel length9.3 metres (31 ft)

Shell55.87 kilograms (123.2 lb)[1]
Caliber155 millimetres (6.1 in) 60 caliber
Elevation-7° to +45°[2]
Rate of fire5 rpm
Muzzle velocity925 metres per second (3,030 ft/s)
Maximum firing range27,400 metres (30,000 yd)
at 45°

The 15.5 cm/60 3rd Year Type (60口径三年式15.5cm3連装砲, 60 kōkei sannenshiki 15.5 centi sanrensōhō) was a dual-purpose naval gun used by the Imperial Japanese Navy on the Yamato-class battleships as secondary armament in four triple turrets, the Mogami-class cruisers in five triple turrets (later converted to five twin 20 cm/50 3rd Year Type naval gun turrets) and on the light cruiser Ōyodo in two triple turrets. The Tone-class cruisers were also initially planned to carry the 15.5 cm/60 3rd Year Type in five triple turrets, but were redesigned with the 20 cm/50 3rd Year Type in four twin turrets. They were also deployed on 60° single mounts as coastal defense guns in the Tokyo Bay area.[3] Construction was of the monobloc type with autofretting and used a Welin breech block mechanism which could be operated either hydraulically or by hand. Their slow rate of fire, limited elevation and slow traverse made them unsuitable for the AA role, but they were an excellent anti-ship weapon.[4]

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Transcription

See also

Notes

  1. ^ DiGiulian
  2. ^ Campbell, Naval Weapons of WWII, p.187-188.
  3. ^ Campbell, Naval Weapons of WWII, p.187-188.
  4. ^ DiGiulian

References

  • Campbell, John (1985). Naval Weapons of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-459-4.
  • Tony DiGiulian, Japanese 15.5 cm/60 (6.1") 3rd Year Type

External links

Media related to 15.5 cm/60 3rd Year Type at Wikimedia Commons

This page was last edited on 27 August 2023, at 09:55
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