Nudelman-Suranov NS-23

Nudelman-Suranov NS-23
NS-23 cannons on a Mig-15 at Muzeum Polskiej Techniki Wojskowej, Warsaw
Type	Autocannon
Place of origin	USSR
Service history
Used by	USSR
Wars	Cold War
Production history
Produced	1944–1953
No. built	28,479
Variants	NS-23k
Specifications
Mass	37 kilograms (82 lb)
Length	198.5 centimetres (6.51 ft)
Barrel length	145 centimetres (4.76 ft)
Shell	23×115mm
Shell weight	175 g (6.2 oz)
Caliber	23 millimetres (0.91 in)
Barrels	1
Action	short recoil
Rate of fire	550 rpm
Muzzle velocity	690 metres per second (2,300 ft/s)
Feed system	belt

The NS-23 was a 23 mm (0.91 in) aircraft cannon designed by A. E. Nudelman, A. Suranov, G. Zhirnykh, V. Nemenov, S. Lunin, and M. Bundin during World War II as a replacement for the Volkov-Yartsev VYa-23 cannon. It entered service in 1944. The NS-23 round was derived from the 14.5×114mm anti-tank round by necking it out to 23 mm.

A synchronized version, designated NS-23S (for synchronized), was used for fixed installations firing through the propeller arc.

Applications of the NS-23 included the Antonov An-2, Ilyushin Il-10, Ilyushin Il-22, Lavochkin La-9, La-15, MiG-9, Yak-9UT, Yak-15, Yak-17, Yak-23, and Tu-4. Some early MiG-15s were also equipped with the NS-23.

The NS-23 was replaced in service by the Nudelman-Rikhter NR-23 around 1949.

• Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 131. ISBN 978-3-200-01445-9. Archived from the original on 2009-10-19. Retrieved 2020-12-12.

Wikimedia Commons has media related to NS-23.

• The NS-23 on airpages.ru