The caliber of 57x165 mm Ústová speed Vo - 600 m/s,
Cadence shooting – 230 shots/min
Weight 135 kg /290 kg is the weight including the clipboard with the usual 40 pcs of ammo/
The cannon was developed in 1946 for the first soviet reactive fighter MiG-9. During the shooting trials at altitudes above 7000 m were regularly to turn off the engine. Subsequent testing and scientific work have shown a negative effect on the airframe and engines, the need to divert the gsr from the inputs to the engine and to increase the stability of the missiles for shooting at larger speeds and altitudes. Because of trouble with the recoil continued even after the development úsťových brakes and lokalizátorů, was the production of the first series stopped and at the same time was a canceled project from the NS-76 caliber 76.2 mm, although successfully completed ground tests. The MiG-9 was finally installed cannon N-37 and other structures of Russian years.cannon to the present day do not exceed significantly a muzzle energy of his ammo 37x165, i.e. 180 kJ.
URL : https://www.valka.cz/SOV-N-57-t40212#368737
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Title: anti-Tank cannon N-57 (OKB-16-57) caliber: 57 mm the weight of the hub: ? the weight of the grenade: 2780g the number of shots per min: weight: 290 kg length: ? mm muzzle velocity: 550 m/s (980m/s ?).
URL : https://www.valka.cz/SOV-N-57-t40212#153904
Version : 0
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