A Bofors design, this weapon was also used on Netherlands destroyers. Models 1924 and 1924B were little different, but Model 1924C was of loose barrel construction. Also built under license by Wilton-Fijenoord.
The Design 1047 battlecruisers would have used a similar design, but in twin mountings. This may have been planned to be a more modern Bofors gun, but these weapons were not available for service use prior to the end of World War II.
All guns fired the same ammunition, which was semi-fixed. Actual bore size was 12 cm (4.724").
After these destroyers were scrapped in the 1960s and 1970s, their guns were then used to arm thirteen fortifications in northern Sweden. The guns were then given new ammunition for use against ground targets. These fortifications have all now been demilitarized and some have been turned into museums.
|Designation||12 cm/50 (4.7") Bofors 1924, 1924B, 1924C and Mark 4
12 cm/50 (4.7") Wilton-Fijenoord Marks 5, 6 and 7
|Ship Class Used On||
|Date Of Design||1924|
|Date In Service||1928|
|Gun Weight||Model 1924C: 2.95 tons (3.00 mt)|
|Gun Length||about 251.6 in (6.390 m)|
|Bore Length||about 236.2 in (6.000 m)|
|Rate Of Fire||10 rounds per minute|
|Weight of Complete Round||N/A|
|Projectile Types and Weights||HE: 52.9 lbs. (24 kg)|
|Propellant Charge||19.4 lbs. (8.8 kg)
Cartridge: 18.3 lbs. (8.3 kg) [empty]
|Muzzle Velocity||HE - 2,952 fps (900 mps)|
|Approximate Barrel Life||N/A|
|Ammunition stowage per gun||N/A|
|30 degrees||21,300 yards (19,500 m)|
I have difficulty in believing this figure, as it is quite long for such a low elevation and this muzzle velocity.
|Elevation Rate||Single mounts: Manually operated, only
Twin mounts: N/A
|Train||about +120 / -120 degrees|
- "Naval Weapons of World War Two" by John Campbell
- "Destroyers of World War Two" by M.J. Whitley
- 21 May 2006
- 18 May 2010
- Added information on coastal fortifications, number of guns on ships
- 16 June 2012
- Deleted picture of Kortenaer, added picture of Evertsen