ShVAK cannon
>
![Historical] The ShVAK Cannon - News - War Thunder](/imgres?imgurl=https://warthunder.com/upload/image/!%25202015%2520NEWS/August/ShVAK%2520Cannon/1280px-T-60_Kubinka.jpg&imgrefurl=https://warthunder.com/en/news/3272--en&h=960&w=1280&tbnid=ShhukZnNpskajM&q=ShVAK+cannon&tbnh=113&tbnw=150&usg=AI4_-kSZRe-cToUkpTMBi9hfw0J2Kg87mw&vet=1&docid=temB5uyJqhNzlM&sa=X&ved=2ahUKEwjL9-Xb2PeFAxVD38kDHdWADRYQ9QF6BAgAEAk)
The ShVAK was a 20 mm autocannon used by the Soviet Union during World War II. It was designed by Boris Shpitalniy and Semyon Vladimirov and entered production in 1936. ShVAK were installed in many models of Soviet aircraft. The TNSh was a version... Wikipedia
Designed: 1935–1936
Barrel length: 1,650 mm (65.0 in) (SP,MP); 1,255 mm (49.4 in) (KP,TP)
Cartridge: 20×99mmR; 12.7x108mmR
Filling weight: (OZ) 2.8 g HE + 3.3 g incendiary
In service: From 1936
Mass: 55 kg (121.3 lb) (MP); 44.5 kg (98.1 lb) (SP); 40 kg (88.2 lb) (TP); 38 kg (83.8 lb) (KP)