Bofors 283 mm gun
From Self-sufficiency
| 28 cm kanon M/12 | |
|---|---|
 Aft 283 mm dual turret on Coastal defence ship Gustav V | |
| Type | Naval gun |
| Place of origin | Sweden |
| Service history | |
| In service | 1916-1957 |
| Production history | |
| Designer | Bofors |
| Designed | 1912 |
| Manufacturer | Bofors |
| Number built | 12 |
| Specifications | |
| Weight | Barrel 44 ton |
| Length | cal 45 |
| | |
| Shell | 305 kg |
| Caliber | 283 millimetres (11.1 in) |
| Elevation | 5°/sec, max 20° |
| Traverse | 4°/sec |
| Rate of fire | 4/min |
| Muzzle velocity | 860 m/sec |
| Maximum range | as built 20 400 m from 1939 24 000 m |
The Bofors 283 mm gun was a naval gun 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 |
