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|Fixed HE tracer
Weight of round
| 3281 feet per second
1000 meters per second
|Rate of fire
|30 rounds per minute
This weapon was used on U-boats and other smaller German warships. Though having a good muzzle velocity, the weapon was only semiautomatic, yielding a rate of fire that was rather low for an antiaircraft weapon. As a result, it began to be replaced with the fully automatic Flak M42 from 1944 on, but it is questionable whether the U-boats deployed to the Far East from 1943 on ever received the upgrade. Single and dual mounts existed, but the usual U-boat outfit was a single gun with unlimited elevation and triaxial motion meant to compensate for ship roll. This proved problematic and was included in the Flak M42.
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