8 cm/40 3rd Year Type naval gun

8cm/40 3rd Year Type naval gun
An 8cm/40 3rd Year Type gun captured at Guadalcanal
Type Naval gun
Place of origin Japan
Service history
In service 1914–1945
Used by Imperial Japanese Navy
Royal Romanian Navy
Wars World War I
World War II
Production history
Designed 1914
No. built 69 (plus possibly spares)
Specifications
Weight 2,401 kg (5,293 lb)
Barrel length 3.2 m (10 ft 6 in) L/40[1]
Shell Fixed
Shell weight 5.7–6 kg (12 lb 9 oz–13 lb 4 oz)
Caliber 7.62 cm (3.0 in)
Breech sliding breech block
Carriage fixed pedestal mount
Elevation -5° – +75°
Traverse 360°[1]
Rate of fire 13–20 rounds per minute
Muzzle velocity 670–685 m/s (2,200–2,250 ft/s)
Effective firing range 5.4 km (18,000 ft) (ceiling)
Maximum firing range 10,800 m (11,800 yd) at 45°[1]

The 8 cm/40 3rd Year Type naval gun was a Japanese naval anti-aircraft gun introduced during World War I. Although designated as 8 cm (3.15 in), its shells were 76.2 mm (3 in) in diameter.

Use

During the Pacific War the gun was thoroughly obsolete, relegated to secondary duties on smaller ships. Some guns were given to civil air defense in Southern Japan.

Two guns were acquired by Romania at some point before the start of World War II. They formed a section of coastal anti-aircraft artillery at the mouth of the Sfântu Gheorghe branch of the Danube Delta. The section was named Lăstunul.[2]

See also

Weapons of comparable role, performance and era

Notes

  1. 1 2 3 Chamberlain, Peter (1975). Anti-aircraft guns. Gander, Terry,. New York: Arco Pub. Co. p. 35. ISBN 0668038187. OCLC 2000222.
  2. ↑ Scurt istoric al artileriei de coastă (Brief history of coastal artillery) PDF, pp. 14–15 (in Romanian)

References

  • Campbell, John (1985). Naval Weapons of World War II. Annapolis, MD: Naval Institute Press. ISBN 0-87021-459-4.
  • This page incorporates material from Japanese Wikipedia page ja:四十口径三年式八糎高角砲, accessed 22 January 2016

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