RBL 20-pounder gun | |
---|---|
![]() 16 cwt field gun with limber | |
Type | Naval gun Field gun |
Place of origin | United Kingdom |
Service history | |
In service | 1859 – 19?? |
Used by | British Empire |
Production history | |
Designer | W.G. Armstrong Co. |
No. built | 412[1] |
Variants | 13, 15 and 16 cwt[note 1] |
Specifications | |
Mass | Naval : 13 long hundredweight (660 kg) or 15 long hundredweight (760 kg) Field : 16 long hundredweight (810 kg)[2] |
Barrel length | Naval : 54 inches (1.372 m) Field : 84 inches (2.134 m) bore & chamber[2] |
Shell | 21 pounds 13 ounces (9.894 kg)[2] |
Calibre | 3.75-inch (95.2 mm) |
Breech | Armstrong screw with vertical sliding vent-piece (block) |
Muzzle velocity | Naval : 1,000 feet per second (300 m/s) Field : 1,130 feet per second (340 m/s)[3] |
Effective firing range | 3,400 yards (3,100 m) |
The Armstrong Breech Loading 20-pounder gun, later known as RBL 20-pounder, was an early modern 3.75-inch rifled breech-loading light gun of 1859.
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