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Nudelman-Suranov NS-23
Cropped NS-23.jpg
A Nudelman-Suranov NS-23 cannon on display at the National Museum of the US Air Force
Type Autocannon
Place of origin  USSR
Service history
Used by  USSR
Wars Cold War
Production history
Produced 1944—1953
Number built 28,479
Weight 37 kilograms (82 lb)
Length 198.5 centimetres (6.51 ft)
Barrel length 145 centimetres (4.76 ft)

Shell 23x115mm
Shell weight 175 g (6.2 oz)
Caliber 23 millimetres (0.91 in)
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 14.5x114mm anti-tank round by necking it out to 23 mm.

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

Applications of the NS-23 included the Antonov An-2, Ilyushin Il-10, Ilyushin Il-22, Lavochkin La-7, Lavochkin La-15, MiG-9, Yakovlev Yak-7, Yak-9U, Yak-15, Yak-17, and Yak-23. Some early MiG-15s also were equipped the NS-23.

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

External links


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