Savin–Norov machine gun
| SN machine gun | |
|---|---|
| Type | Aircraft machine gun |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1939–1940 |
| Used by | Soviet Air Forces |
| Wars | Winter War |
| Production history | |
| Designer | Ivan Savin, Aleksandr Norov |
| Designed | 1935 |
| No. built | at least 14 built; 6 used in service[1] |
| Specifications | |
| Cartridge | 7.62×54mmR |
| Caliber | 7.62 mm |
| Action | Gas-operated[2] |
| Rate of fire | 2800–3600 RPM[2][3] |
| Feed system | Belt |
| Sights | Iron sights |
The SN (Savin and Norov) was an aircraft machine gun manufactured in small numbers in the Soviet Union before World War II.
The gun was intended to achieve a higher rate of fire than the ShKAS, while using the same 7.62×54mmR cartridge. In order to achieve this goal, the barrel and bolt moved in opposite directions.[2] Sources vary as to high a rate of fire was actually achieved. One indicates "more than 3600 RPM"[2] while others give the 2800–3000 RPM range.[3][4]
The SN gun was designed in 1934-1935 by I.V. Savin (И.В. Савин) and A.K. Norov (А.К. Норов).[3][4] According to a Western source, it was offered to the VVS, which rejected it in 1936.[5] Soviet sources indicate that the SN machine gun was installed in the wings of three Polikarpov I-16 aircraft in January 1939; these planes were given the designation I-16 Type 19 and they took part in the Winter War. The gun was also supposed to be installed in a propeller-synchronized mounting in the I-16 Type 20. Although four planes were built in this configuration, they did not go into service; the Type 20 designation was then reused for I-16 aircraft only armed with ShKAS guns, but capable of carrying drop tanks. A further type I-16 Type 22 was planned to be armed with four propeller-synchronized guns, two of which were supposed to be SN guns (and the other two ShKAS), but this type was apparently never built and was cancelled in August 1939.[1] As with the UltraShKAS, the reliability of the SN machine gun was low, so it did not go into mass production.[4]
An SN exemplar could be seen (in 1996) at the Central Air Force Museum.[6]
See also
[edit]- ShKAS machine gun
- SIBEMAS machine gun
- List of firearms
- List of Russian weaponry
- List of common World War II weapons
References
[edit]- ^ Jump up to: a b Маслов М. А. (2008). Истребитель И-16. Норовистый "ишак" сталинских соколов (in Russian). Яуза / Коллекция / ЭКСМО. pp. 55–57. ISBN 978-5-699-25660-0.
- ^ Jump up to: a b c d "On-line errata to the book Flying Guns World War II". Archived from the original on 2010-01-11. Retrieved 2010-08-20.
- ^ Jump up to: a b c С.В. Иванов (2001). И-16: Боевой "Ишак" сталинских соколов. Часть 2. Война в воздухе (in Russian). Vol. 43. ООО "АРС".
Раньше чем начались испытательные стрельбы ультраШКАСа, два инженера, Савин и Норов, представили в 1935 г. на испытания еще один авиационный пулемет СН скорострельностью 2800-3000 выстрелов в минуту. В 1936 г. пулемет успешно прошел стрельбовые испытания, а в 1937 г. был рекомендован к серийному производству. Пулеметами СН немедленно вооружили истребители И-16; И-16 с пулеметами СН получили обозначение тип 19, несмотря на то, что кроме вооружения самолет ничем не отличался от И-16 тип 10. Пулеметами СН заменили крыльевые ШКАСы, синхронные пулеметы остались прежними - ШКАСы. В начале 1939 г. завод № 21 изготовил три И-16 тип 19 (заводские номера 192111, 19212 и 19213). С 17 по 26 марта самолеты испытывал заводской летчик-испытатель Томас Сузи. По результатам испытаний было рекомендовано построить партию таких самолетов. Но массовое производство посчитали нецелесообразным. Под обозначением И-16СН истребители передали в ВВС. Весной 1939 г. на вооружение ВВС РККА был принят авиационный пулемет ультраШКАС. Истребители, вооруженные ультраШКАСАми и СН, приняли участие в войне с Финляндией зимой 1939-1940 г.г.
- ^ Jump up to: a b c Широкорад А.Б. (2001) История авиационного вооружения Харвест (Shirokorad A.B. (2001) Istorya aviatsionnogo vooruzhenia Harvest. ISBN 985-433-695-6) (History of aircraft armament), p. 73
- ^ David R. Jones (1978). The Military-naval Encyclopedia of Russia and the Soviet Union. Vol. 5. Academic International Press. p. 126. ISBN 978-0-87569-028-5.
- ^ B. Korolkov; V. Kazashvili (1996). A Guide to the Russian Federation Air Force Museum at Monino. Schiffer Pub. p. 159. ISBN 978-0-7643-0076-9.
External links
[edit]- Exterior photo
- Schematic from the Russian patent Archived 2010-05-15 at the Wayback Machine
- Photo of mount in an I-16 wing
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