Nudelman-Suranov NS-45
Type	Autocannon
Place of origin	USSR
Service history
In service	1944—1947
Used by	USSR
Wars	Second World War, Cold War
Specifications
Weight	152 kilograms (340 lb)
Length	252 centimetres (8.3 ft)
Shell	45×186mm
Shell weight	1.065 kg (2.35 lb)
Caliber	45 millimetres (1.8 in)
Action	automatic
Rate of fire	250 rpm
Muzzle velocity	850 metres per second (2,800 ft/s)
Feed system	belt

The Nudelman-Suranov NS-45 was an enlarged version of the Soviet Nudelman-Suranov NS-37 aircraft autocannon. It was evaluated for service on the Yakovlev Yak-9 during World War II, but proved to be unreliable and was not adopted for service. However, two were mounted on the prototype Tupolev Tu-1 night fighter after the end of World War II.

[edit] Bibliography

• Gunston, Bill (1995). Tupolev Aircraft since 1922. Annapolis, MD: Naval Institute Press. ISBN 1-55750-882-8. 
• Koll, Christian (2009). Soviet Cannon - A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 417. ISBN 978-3-200-01445-9. http://www.russianammo.org. 

[edit] External links

• NS-45 on RAM
• NS-45 on Russianammo.org