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The Nudelman-Suranov NS-37 () was a aircraft cannon, which replaced the unreliable
Shpitalny Sh-37 The Shpitalny Sh-37 () was the first indigenous Soviet aircraft cannon, designed by Boris Shpitalniy at OKB-15.Широкорад А.Б. (2001) ''История авиационного вооружения'' Харвест (Shirokorad A.B. (2001 ...
gun. Large caliber was planned to allow destruction of both ground targets (including armoured ones) and planes (ability to shoot down a bomber with a single hit). Developed by A. E. Nudelman and A. Suranov from OKB-16 Construction Bureau from 1941, it was tested at the front in 1943 and subsequently ordered into production, which lasted until 1945. It was used on the
LaGG-3 The Lavochkin-Gorbunov-Gudkov LaGG-3 (Лавочкин-Горбунов-Гудков ЛаГГ-3) was a Soviet fighter aircraft of World War II. It was a refinement of the earlier LaGG-1 and was one of the most modern aircraft available to the S ...
and Yak-9T fighter planes (mounted between the vee of the engine, in ''motornaya pushka'' mounts) and
Il-2 The Ilyushin Il-2 (Russian language, Russian: Илью́шин Ил-2) is a Ground attack aircraft, ground-attack plane that was produced by the Soviet Union in large numbers during the World War II, Second World War. The word ''shturmovík'' (C ...
ground attack planes (in underwing pods). Although the heavy round offered large firepower, the relatively low rate of fire and heavy recoil made hitting targets difficult. While pilots were trained to fire short bursts, on light aircraft only the first shot was truly aimed. Additionally, penetration of medium and heavy tanks' top armour was possible only at high angles (above 40 degrees), which was hard to achieve in battle conditions. For these reasons it was soon replaced in 1946 by the N-37 autocannon, which used a lighter 37×155 mm round.


See also

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Nudelman-Suranov NS-45 The Nudelman-Suranov NS-45 was an enlarged version of the Soviet Nudelman-Suranov NS-37 aircraft autocannon. It was evaluated for service on 44 Yakovlev Yak-9K aircraft during World War II, but proved to stress the airframes too much. The NS-45 w ...
: larger Soviet version *
Nudelman N-37 The Nudelman N-37 was a 37 mm (1.46 in) aircraft autocannon used by the Soviet Union. It was designed during World War II by V. Ya. Nemenov of Alexander Nudelman, A.E. Nudelman's OKB-16 to replace the earlier Nudelman-Suranov NS-37 and e ...
: postwar Soviet version


Weapons of comparable role, performance and era

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Vickers S The Vickers 40 mm Class S gun, also known simply as the Vickers S or S gun, was a 40 mm (1.57 in) airborne autocannon designed by Vickers-Armstrongs for use as aircraft armament. It was primarily used during World War II by Bri ...
: 40-mm British equivalent *
M4 cannon The 37 mm Automatic Gun, M4, known as the T9 during development, was a 37 mm (1.46 in) recoil-operated autocannon designed by John Browning, Browning Arms Company and entered service in 1942. The M4 and its variants would primaril ...
: US equivalent *
BK 37 The Bordkanone 3,7 (BK 3,7) ("on-board cannon 3.7") was a German anti-tank/bomber autocannon of World War II and based on the earlier 3.7 cm Flak 18 made by Rheinmetall. It was mounted on Luftwaffe aircraft such as the Junkers Ju 87 G-1 and ...
: German equivalent * Ho-203 cannon : Japanese equivalent


References

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External links


NS-37 on RAM

Schematic (in Russian)
{{Russian and Soviet Aircraft Ordnance


External links


history and description


__NOTOC__ 37 mm artillery Autocannons of the Soviet Union Aircraft guns of the Soviet Union Izhevsk machine-building plant products Weapons and ammunition introduced in 1942