SOV - NS-23 (23 mm kanón)

NS-23 NS-23
Originální název:
Original Name:
Vývoj: ОКБ-16,
výroba: Státní letecký průmysl SSSR - závod č. 2 ОАО «Завод им. В. А. Дегтярёва» (ОАО «ЗиД»), Ковров a
Тульском заводе № 535, Tula .
konstruktéři: A. E. Nudelman a A. A. Suranov
Období výroby:
Production Period:
Vyrobeno kusů:
Number of Produced:
Prototyp vyroben:
Prototype Built:
Jakovlev Jak-9 (zkoušky), Jak-15, Jak-17 a Jak-23, Iljušin Il-10, Il-22 a Il-28, Lavočkin La-9 a La-11, Mikojan-Gurevič MiG-9, MiG-15
Technické údaje:
Technical Data:
37,0 kg 82 lb
23 mm / 0.91 inch
Délka hlavně:
Barrel Length:
1450 mm 4ft 9,09in
Celková délka:
Overall Length:
1985 mm 6ft 6,15in
Používaná munice:
Ammo Used:
БЗ - průbojný zápalný (199 g)
03 - tříštivě zápalný (196 g)
A.P.I. (7,02 oz)
H.E.I. (6,914 oz)
Maximální dostřel:
Maximum Range:
1 - 1,3 km 0.6 - 0.8 mi
Rychlost střelby:
Rate of Fire:
600 ran/min 600 rpm
Úsťová rychlost:
Muzzle Velocity:
680 - 700 m/s 2231 - 2296.6 ft/s
NS-23S - se synchronizátorem
NS-23KM - kanón pro zástavbu do křídel a do motoru letounu
NS-23KM - verze s dlouhou hlavní
NS-23S (S for synchronized), was used for fixed installations firing through the propeller disc.
NS-23KM - version for fixed installation in wings or engines
NS-23KM - version with a long barrel.

Feed systém - belt.
Lubomír Popelínský, Vladimír Kodeš, František Ludvík Střelecká a raketová výzbroj letadel, Naše vojsko, 2010, ISBN 80-206-1124-6
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Cannon NS-23 caliber 23 mm

This air cannon was one of a new generation of cannons that appeared in the second half of World War II in the armament of the USSR Air Force. NS-23 was just like NS-37 and NS-45 product of constructors AENudelman and ASSuranov. In many respects, it surpassed its predecessor cannon VJA-23 and was adopted in 1944 into the armament of the Air Force.

For the NS-23 cannon, its designers focused mainly on reducing the effects of their own fire on the structure of the aircraft. The automation of this cannon was based on the use of a short recoil barrel, which managed to reduce the overall stress on the cannon and the entire structure of the aircraft. The solution of the weapon itself made it possible to reduce its weight by almost half compared to VJA-23. Furthermore, the designers, according to the requirements of the Air Force, focused on extending the operating time without cleaning and lubrication, as well as on a simple and trouble-free supply of cannon ammunition.

The NS-23 had a swivel closure with mechanical match initialization and a strand pre-spring mounted in a tube on the side of the case. This spring also served to tension the weapon itself. When moving backwards, the breech was accelerated by a lever accelerator. When moving forward, the breech was caught by the auxiliary catch of the trigger mechanism during each functional cycle. During the time when the breech was at rest, the ammunition was delivered and at the same time the empty cartridge was ejected from the weapon. A part of the so-called recoil energy transmitted via a swinging slide to the feed spring was used to deliver the charge. The final release of the breech (from the auxiliary catch) occurred during the run-down mainly to the front position.

The serial cannon NS-23 was characterized by a reliable automatic function, low weight, high cadence and trouble-free maintenance. One of the variants of this cannon marked NS-23s (with synchronizer) was mounted on aircraft La-9 / La-11. The cannons fired around the propeller. In the version without a synchronizer, for example, in the number of four pieces was mounted in aircraft Il-10. Later, the NS-23 was installed in the Mig-15, Jak-23 jets.

TTD Cannon NS-23:

Caliber: 23 mm
Cartridge weight: 470 g
Bullet weight: 196 - 201 g
Weight: 36.6 kg
Length: 1985 mm
Cadence: 550 r/min
Muzzle velocity: 667 - 687 m/s

Example of ammunition used:

23 mm shatter-flammable with impact lighter

Cartridge weight: 470 g
Bullet weight: 201 g
Hub length: ??? mm
Muzzle velocity: 667 m/s

Effects at the target: Provides a shot in the cover of the aircraft up to 70 cm2, ignites gasoline in tanks.

23 mm anti-tank-inflammable

Cartridge weight: 470 g
Bullet weight: 196 g
Hub length: ??? mm
Muzzle velocity: 687 m/s

Effects at the finish: At 400 m, 25 mm armor passes at an angle of 90, ignites gasoline in tanks.

- L. Popelínský, Aircraft Rifle and Missile Armament, Our Army 1997, ISBN 80-206-0531-2
- V.Dymič, M.Šedivý, Triumph and Tragedy, The World of Wings 2001, ISBN 80-85280-70-1
- V.Němeček, Vojenská letadla 1-5, Naše vojsko 1990, whole set ISBN 80-206-0114-7
- author's archive
URL : Version : 0

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SOV - NS-23 (23 mm kanón) - Kanóny NS-23 instalované v Su-11
(oba boční)

Kanóny NS-23 instalované v Su-11
(oba boční)

URL : Version : 0
Russian 23mm calibre air cannons use (except for VJa) 23x115 ammunition with energy of impact
about 47 kJ, about half of the 23x152 calibre of the VJa and ZU-23, the projectiles and fuses are practically identical.

Source :
A.E.Nudelman, Canons of Combat Aircraft, 1988
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