More than 20 planes and helicopters and 500 troops from the Baltic Fleet’s naval aviation base are involved in flight and tactical exercise and missile firing ... helicopters Mi-24 and Mi ...

The Mi-24 helicopters have been mass-produced since ... featuring a 12.7×108 mm caliber and a firing rate of 4-5 thousand rounds per minute, or a twin-barrel GSh-30-2 cannon with a 30 mm caliber.