SchKAS
| SchKAS | |
|---|---|
|
|
| general information | |
| Military designation: | SchKAS |
| Country of operation: | Soviet Union |
| Developer / Manufacturer: | B. Schpitalny and I. Komaritzky |
| Manufacturer country: | Soviet Union |
| Production time: | 1930 to 1940 |
| Model variants: | SchKAS, Ultra-SchKAS |
| Weapon Category: | Machine gun |
| Furnishing | |
| Weight: (unloaded) | 10.6 kg |
| Technical specifications | |
| Caliber : | 7.62 × 54 mm rows |
| Ammunition supply : | Decay belt |
| Cadence : | 1800 or 2500-2800 rounds / min |
| Fire types: | Serial fire |
| Number of trains : | 4th |
| Twist : | right, 250 mm |
| Closure : | Tilt block closure |
| Charging principle: | Gas pressure charger |
| Lists on the subject | |
The SchKAS ( Russian ШКАС: Шпитального-Комарицкого авиационный скорострельный , transcription : Schpitalnowo-Komarizkowo awiazionny skorostrelny, German: Schpitalny / Komaritzky machine gun for aircraft ) is an aircraft machine gun . Almost all Soviet military aircraft were equipped with this on-board weapon at the beginning of the Second World War . Around 34,233 units had been built by 1940.
development
The SchKAS was developed from 1930 by B. Schpitalny and I. Komaritzky. From 1934 the Soviet air forces were equipped with this weapon. It was first used in combat during the Spanish Civil War .
description
The SchKAS is a closing gas pressure loader with a tilting block and reaches the very high rate of fire of 1800 rounds per minute. This was made possible by a large bore hole in the barrel, and in addition to the closing spring , the moving parts of the slide , control piece and gas piston are thrown forward again at high speed by buffer springs attached to the rear stop. The weapon fires cartridges in the 7.62 × 54 mm R infantry caliber . The taped cartridges are fed in via a drum that is driven by a lever through a link milled into the control piece. The edge of the cartridges is guided by a control cam milled into the fixed outer shell of the drum. The cartridges make a nearly complete circling of the system until they land in front of the chamber. In doing so, the control cam pulls them out of the belt links to the rear, the belt links fall off about halfway. The muzzle velocity is 825 m / s.
Installation
The installation could be done rigidly in the wing or in the synchronized version above the engine, for example in the I-15 and I-16 fighters . It was movably mounted in the U-2 , the Pe-2 and the Tu-2 in slewing rings or rotating towers.
Further development
The successor model Ultra-SchKAS appeared at the end of the 1930s and had a rate of fire of 2,500–2,800 rounds / min. From this modification very few copies were built of it, since now-based on the SchKAS automatic cannon shvak cannon were available.
The competition model for the Ultra-SchKAS was the 7.62-mm MG SN model 1937 by I. W. Sawin and A. K. Norow (2,800-3,000 rounds / min), which however could not prevail.
