| 28 cm kanon M/12 | |
|---|---|
Aft 283 mm dual turret on Coastal defence ship Gustav V |
|
| Type | Naval artillery |
| Place of origin | Sweden |
| Service history | |
| In service | 1916-1957 |
| Production history | |
| Designer | Bofors |
| Designed | 1912 |
| Manufacturer | Bofors |
| Number built | 12 |
| Specifications | |
| Barrel length | 12,735 mm (501.4 in) |
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| Shell | 305 kg (670 lb) |
| Caliber | 283 mm (11.1 in)/45 caliber |
| Elevation | -10°/+20° (5°/s) |
| Traverse | 150° from either side of centreline (4°/s) |
| Rate of fire | 4/min |
| Muzzle velocity | 860 m/s (2,800 ft/s) |
| Maximum range | As built:20,400 m (22,300 yd) From 1939: 24,000 m (26,000 yd) |
The Bofors 283 mm gun was a naval artillery used in the Swedish Sverige class coastal defence ships.
| Distance[m] | 6,000 | 18,000 |
|---|---|---|
| Side armor belt penetration[mm] | 350 | 155 |
| Deck armor penetration[mm] | - | 87 |