BL 7.5-inch Mk I naval gun

Ordnance BL 7.5-inch gun Mk I
Starboard wing gun on HMS Antrim
TypeNaval gun
Place of originUnited Kingdom
Service history
In service1905–1922
Used byRoyal Navy
WarsWorld War I
Production history
DesignerVickers
Designedcirca. 1901
ManufacturerVickers
Produced1905
No. built33
Specifications
Mass13.7 long tons (13.9 t)
Barrel length28 feet (8.534 m) bore (45 calibres)
Shell200 pounds (90.7 kg)
Calibre7.5 inches (191 mm)
BreechWelin breech block
Elevation-5° to +15°
Rate of fire4-5 rpm
Muzzle velocity2,700 ft/s (820 m/s)[1]
Effective firing range7.9 mi (12.7 km) at 15°[2]

The BL 7.5-inch gun Mk I was a British 45-calibre, medium-velocity, naval gun which entered service with the Royal Navy in 1905.

History

This gun was only mounted on Devonshire class cruisers commissioned in 1905, and was quickly superseded by the 50-calibre 7.5-inch Mk II gun.

See also

Notes

  1. ^ 2700 ft/sec firing a 200-pound projectile: Brasseys Naval Annual 1902 using 61 lb cordite MD size 26 propellant : Treatise on Ammunition 1915
  2. ^ Friedman, Norman (1 January 2011). Naval weapons of World War One. Seaforth. ISBN 978-1-84832-100-7. OCLC 786178793.

References

  • Friedman, Norman (2011). Naval Weapons of World War One. Barnsley, South Yorkshire, UK: Seaforth. ISBN 978-1-84832-100-7.
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