|
Actual overall length was 50 calibers. |
105 mm/50 twin mounting |
105 mm/50 in action. Net was to slow the ejected shell casings |
|
Actual overall length was 50 calibers. |
|
105 mm/50 twin mounting |
|
105 mm/50 in action. Net was to slow the ejected shell casings |
| Designation | 105 mm/50 (4.1") Model 1932 Bofors |
| Ship Class Used On | Väinämöinen class |
| Date Of Design | about 1930 |
| Date In Service | 1932 |
| Gun Weight | 2.51 tons (2.55 mt) with breech mechanism |
| Gun Length oa | 206.7 in (5.250 m) |
| Bore Length | about 194.3 in (4.935 m) |
| Rifling Length | N/A |
| Grooves | N/A |
| Lands | N/A |
| Twist | N/A |
| Chamber Volume | N/A |
| Rate Of Fire
(see Note) |
15 rounds per minute |
| Note: Automatic rammers powered from hydro-pneumatic accumulators gave these guns a high rate of fire. | |
| Type | Fixed |
| Complete Round Weight | HE - 55.6 lbs. (25.2 kg) |
| Projectile Types and Weights | HE - 35.3 lbs. (16 kg) |
| Bursting Charge | HE - N/A |
| Projectile Length | N/A |
| Propellant Charge | 9.04 lbs. (4.1 kg) |
| Muzzle Velocity | 2,625 fps (800 mps) |
| Working Pressure | N/A |
| Approximate Barrel Life | N/A |
| Ammunition stowage per gun | N/A |
| Elevation | With 35.3 lbs. (16 kg) HE Shell |
| Range @ 45 degrees | 19,900 yards (18,200 m) |
| AA ceiling @ 85 degrees | 39,400 feet (12,000 m) |
| Designation | Twin Mounts
Väinämöinen (4) |
| Weight | 21.75 tons (22.1 mt) |
| Elevation | -10 / +85 degrees |
| Elevation Rate | Hand operated, only |
| Train | about -/+ 100 degrees |
| Train Rate | Hand operated, only |
| Gun recoil | N/A |
| Note: It is unclear from photographs if there was any sort of time-fuze setting mechanism in the mounting. The fuzes may have needed to be set by hand. If so, then these weapons would have been limited to barrage firing. | |
Kosaku Ariga (Jarek) website