3.7 cm SK C/30
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The 3.7 cm SK C/30[Note 1] was the German Kriegsmarine's primary 3.7 cm (1.5 in) anti-aircraft gun during the Second World War. It was superseded by the fully automatic 3.7 cm FlaK 43 late in the war.
Contents
Description
The C/30 was a single-shot, semi-automatic anti-aircraft gun that was loaded one round at a time which dropped its effective rate of fire to a mere 30 rounds per minute, far inferior to the 80-100 rounds per minute of its contemporary, the Bofors 40 mm anti-aircraft gun. The SK C/30U gun was modified for use by submarines. All mountings were suitable for use against both air and sea targets.[1]
Mountings
The Doppellafette C/30 (Dopp L C/30) was a twin mount with each gun in a separate cradle. It had a six-man crew on the mount itself plus additional ammunition handlers. The mounting was manually traversed and elevated and was gyro-stabilized up to a limit of 19.5° degrees to counteract the roll and pitch of the ship. Most German ships, fleet torpedo boat or larger, carried at least one Dopp L C/30 mounting. The Einheitslafette C/34 (Einh L C/34, universal mounting model 34) was a single gun mounted on a pedestal with a two-man crew. Some mounts were fitted with a 8 millimetres (0.31 in) gun shield. It was used on the smaller Kriegsmarine ships like the Schnellboot. A number were used on land to supplement the anti-aircraft defenses of ports. The Ubts L C/39 submarine mount used the SK C/30U gun. It was a simple pedestal mount with a two-man crew, one of whom trained the gun with the shoulder stirrup; the other used gears to elevate the gun.[2]
| Mounting | weight | elevation |
|---|---|---|
| Dopp L C/30 | 3,670 kg (8,090 lb) | -9° to +85° |
| Einh L C/34 | 1,860–2,020 kg (4,100–4,450 lb) | -10° to +80° |
| Ubts L C/39 | 1,450 kg (3,200 lb) | -10° to +90° |
Ammunition
The SK C/30 used two types of tracer rounds. The 3.7 cm Br Sprgr Patr 40 L/4.1 Lh 37M was a high-explosive round with an incendiary filling while the 3.7 cm Sprgr Patr 40 L/4.1 Lh 37 lacked the incendiary fill, but was otherwise identical. Tracers were available in red, yellow or white and were marked on the shell by a painted band of the appropriate color. A complete round weighed 1.78 kilograms (3.9 lb).[3]
Footnotes
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External links
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Wikimedia Commons has media related to 3.7 cm SK C/30. |
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