120 mm 50 caliber Pattern 1905

120 mm 50 caliber Pattern 1905
An open twin-mount Pattern 1905 in Finnish service.
TypeNaval gun
Coastal artillery
Railway artillery
Place of originGreat Britain
Service history
In service1905–1950s
Used byRussian Empire
Soviet Union
Finland
WarsWorld War I
Russian Civil War
Winter War
World War II
Production history
DesignerVickers
Designed1905
ManufacturerVickers
Obukhov State Plant
Produced1905
No. built210
Specifications
Mass3.1 t (3.4 short tons)
Length6 m (19 ft 8 in) 50 caliber
Barrel length5.8 m (19 ft 0 in)

ShellFixed QF ammunition
Shell weight20.4–29 kg (45–64 lb)
Calibre120 mm (4.7 in)
ElevationSingle mount: -10° to +20°
Twin mount: -3° to +27°[1]
Traverse360°
Rate of fire6-7 rpm
Muzzle velocity792 m/s (2,600 ft/s)
Maximum firing range13.7 km (8.5 mi) at +20°[2]

The 120 mm 50 caliber Pattern 1905 was a Russian naval gun developed by Vickers for export in the years before World War I that armed a variety of warships of the Imperial Russian Navy. Guns salvaged from scrapped ships found a second life as coastal artillery, railway artillery and aboard river monitors during the Russian Civil War.[2] It was estimated that there were 110 guns in the Soviet Navy's inventory in 1941. Of these, 39 were in the Baltic Fleet, 20 in the Black sea Fleet, 24 in the Amur Flotilla, 11 in the Pacific Fleet and 6 in the Pinsk flotilla in World War II.[1]

  1. ^ a b Cite error: The named reference :1 was invoked but never defined (see the help page).
  2. ^ a b Friedman, Norman (2011). Naval weapons of World War One. S. Yorkshire: Seaforth Pub. ISBN 9781848321007. OCLC 751804655.