120-pounder Whitworth naval gun

120-pounder Whitworth gun
TypeNaval gun
Place of originUnited Kingdom
Service history
In service1865โ€“
Used byBrazil
WarsParaguayan War
Production history
DesignerJoseph Whitworth
ManufacturerJoseph Whitworth
Produced1865?โ€“
Specifications
Mass16,660 pounds (7,556.8 kg)
Length144 inches (3.658 m)

ShellSolid shot
Explosive shell
Shell weight151 pounds (68.5 kg)
Calibre7-inch (178 mm)
Maximum firing rangeabout 5,540 yards (5,070 m)
FillingBlack powder
Filling weight5 pounds (2.3 kg)[1]

The 120-pounder Whitworth naval gun was designed by Joseph Whitworth during the 1860s. It was a rifled muzzle loader and used his hexagonal rifled bore design, the principle of which is described in the article on the 70-pounder Whitworth naval gun.

Service

A number of 120-pounders were bought by the Imperial Brazilian Navy and used to arm some of its ironclads during the Paraguayan War in the late 1860s.[2]

Notes

  1. ^ Holley, p. 34
  2. ^ Gratz, pp. 141, 144, 153

References

  • Gratz, George A. (1999). "The Brazilian Imperial Navy Ironclads, 1865โ€“1874". In Preston, Antony (ed.). Warship 1999-2000. London: Conway Maritime Press. ISBN 0-85177-724-4.
  • Alexander Lyman Holley, "A Treatise on Ordnance and Armor" published by D. Van Nostrand, New York, 1865


 

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