m-57

The Bofors 57 mm m/47 aircraft gun (Swedish: 57 mm automatkanon m/47, short 57 mm akan m/47) was a Swedish aircraft gun developed by Bofors AB for the T 18B, a Swedish torpedo bomber manufactured by SAAB. The designation "57 mm automatkanon m/47" is translated to "57 mm autocannon model 1947". It is referred to as the Bofors 57 mm type L50 by the manufacturer.It was an effective and modern weapon for its time, and was capable of firing through a full magazine smoothly due to its reliable design and the use of a powerful muzzle brake. The recoil could be felt by the pilot, but this didn't interfere with the pilot's aim, and the weapon was accurate up to 2,000 m (2,200 yd).

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