Английская Википедия:3.7 cm SK C/30
The 3.7 cm SK C/30[Note 1] was the German Kriegsmarine's primary Шаблон:Convert anti-aircraft gun during the Second World War. It was superseded by the fully automatic 3.7 cm FlaK 43 late in the war.
Description
The C/30 was a semi-automatic anti-aircraft gun (ie; after firing each round, the breech opened and the spent cartridge casing was automatically expelled, ready for the next round to be loaded), and it was hand-loaded one round at a time. This mechanism gave the weapon an effective, sustained, firing rate of 30 rounds per minute. Whilst not uncompetitive with contemporary and earlier designs of semi-automatic light gun, it was far inferior to the 120 rpm cyclic firing rate of its (slightly later-designed) wartime contemporary, the fully automatic Bofors 40 mm anti-aircraft gun. The C/30's muzzle velocity was, on the other hand, about 12-15% higher than the Bofors; this slightly eased the aiming. The SK C/30U gun was modified for use by submarines. All mountings were suitable for use against both air and soft surface targets.[1]
Ship classes that carried the 3.7 cm SK C/30 include: Шаблон:Divcol
- Admiral Hipper-class cruisers
- Bismarck-class battleships
- Chamois-class minesweeping sloops
- Deutschland-class battleships
- Deutschland-class cruisers
- Elbing-class torpedo boats
- F-class escort ships
- German Type IXA submarines
- German Type XIV submarines
- Graf Zeppelin-class aircraft carriers
- Königsberg-class cruisers
- Leipzig-class cruisers
- M-class minesweepers
- PA-class patrol ships
- R boats
- Sperrbrecher
- Scharnhorst-class battleships
- Type 1934A-class destroyers
- Type 1936-class destroyers
- Type 1936A-class destroyers
- Type 1936B destroyers
- Type 35 torpedo boats
- Type 37 torpedo boats
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 Шаблон:Convert 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 | Шаблон:Convert | -9° to +85° |
| Einh L C/34 | Шаблон:Convert | -10° to +80° |
| Ubts L C/39 | Шаблон:Convert | -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 Шаблон:Convert.[3]
Comparison of anti-aircraft guns
| Country | Gun Model | RPM | Projectile Weight | Weight of fire |
|---|---|---|---|---|
| Шаблон:Flag | 3.7 cm SK C/30 | 30 | Шаблон:Convert[4] | Шаблон:Convert |
| Шаблон:FRA | Canon de 37 mm Modèle 1925 | 15–21 | Шаблон:Convert[5] | Шаблон:Convert |
| Шаблон:ITA | Cannone-Mitragliera da 37/54 (Breda) | 60–120 | Шаблон:Convert[6] | Шаблон:Convert |
| Шаблон:USA | 37 mm Gun M1 | 120 | Шаблон:Convert | Шаблон:Convert |
| Шаблон:Flag | 3.7 cm Flak 18/36/37/43 | 150 | Шаблон:Convert[7] | Шаблон:Convert |
| Шаблон:USSR | 37 mm automatic air defense gun M1939 (61-K) | 80[8] | Шаблон:Convert[9] | Шаблон:Convert |
| Шаблон:GBR | QF 2-pounder naval gun | 115 | Шаблон:Convert[10] | Шаблон:Convert |
| Шаблон:SWE | Bofors 40 mm gun | 120 | Шаблон:Convert[11] | Шаблон:Convert |
Footnotes
Citations
References
External links
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- ↑ Campbell, p. 256
- ↑ Шаблон:Cite web
- ↑ Hogg, p. 223
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite book
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
- ↑ Шаблон:Cite web
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