57mm Caliber Gun (Bofors 57mm)
Weapon
57mm Caliber Gun (Bofors 57mm)
🎯 WeaponSwedish dual-purpose naval gun designed and produced by Bofors for anti-aircraft and anti-surface use.
The Bofors 57mm Naval Automatic Gun L/70 (Swedish: 57mm sjöautomatkanon L/70, also known as 57mm SAK 70) is a series of dual-purpose naval guns designed and produced by AB Bofors (since March 2005, part of BAE Systems AB). It was designed in the late 1960s as a replacement for the twin-barreled Bofors 57mm Naval Automatic Gun L/60. The gun is remotely controlled by a fire-control computer but can also be operated manually by crew using instrument panels on or in direct contact with the gun.
Performance
While the 57mm cannon may not seem as powerful as larger naval guns such as the OTO Melara 76mm, some of its performances are comparable. Given its rate of fire and amount of explosive per shell, the Bofors gun actually achieves a higher amount of "explosive fired per second" than the 76mm.
General Characteristics (Mark 3)
| Specification | Value |
|---|---|
| Mass (Mark 3) | 14,000 kg (including 1,000 rounds) |
| Bore length | 3,990 mm (157.09 in) |
| Overall length (with flash hider) | 4,345 mm |
| Shell | 57 × 438 mm R (m/70) |
| Complete round weight | 6.1 kg (13 lb) |
| Shell weight | 2.4 kg (5.3 lb) pre-fragmented |
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