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17-794: It built the Mi-6 Hook and Mi-10 Harke heavy-lift helicopters and the Mi-26 Halo. It also produced the Mi-25 and Mi-35 Hind combat attack helicopters and the Mi-28 Havoc. It produces Mi-26T , Mi-24 and Mi-28N . The plant also produces substantial quantities of helicopter rotor blades and consumer goods. The capital structure of the company is as follows: 47°15′22″N 39°44′03″E  /  47.256165°N 39.734277°E  / 47.256165; 39.734277 Mil Mi-6 The Mil Mi-6 ( NATO reporting name Hook ), given

34-521: A 12.7 mm (0.500 in) Afanasev A-12.7 machine-gun with up to 270 rounds Related development Aircraft of comparable role, configuration, and era The initial version of this article was based on material from aviation.ru . It has been released under the GFDL by the copyright holder. Afanasev A-12.7 The Afanasev A-12.7 is a heavy machine gun developed by Nikolay M. Afanasev in 1949 and adopted for service in 1953. This gun

51-588: A crew of five or more, the Mi-6 seats 65 armed troops and can alternatively carry 41 stretcher (litter) patients and two attendants, or a wide range of bulky loads, including vehicles, loaded through rear clamshell doors. In exercises, fleets of these aircraft have airlifted many kinds of weapons, including FROG-7 rockets on their PT-76 tracked chassis, as well as large radars and heavy artillery. All Soviet armoured personnel carriers , armoured cars and light mechanised infantry combat vehicles can be carried. The Mi-6

68-470: A different approach by introducing an acceleration lever , which transferred the energy of a short motion actuating slide into a long motion of a chambering and case extraction arm. This way the motion length of the actuating slide could remain shorter than the overall length of the cartridge , thus increasing the rate of fire. Later, the same operating mechanism was used in the 23mm AM-23 and ZSU-23 cannon as well. Afanasev's prototype 12.7mm machine gun

85-418: Is operated by a voltage of 26V. At the back plate a spring buffer is located. Ammunition may be fed from either the left or from the right side. A pneumatically operated charging mechanism on the left side of the receiver is used to charge the machine gun and to clear misfires. The cylindrical housing on the right side of the receiver contains the return spring of the actuating slide. The internal machining of

102-457: Is used to ram the cartridge from the belt link into the chamber. An extraction claw on its forward end is used to extract the fired cartridge case. The lower lever protrudes into the weapon housing and has a U-shaped recess on its lower end. As the actuating slide moves back and forth, a traverse lug in the weapon housing is cammed into this recess to guide the chambering levers. The A-12.7 aircraft machine gun has an electrical sear mechanism that

119-535: The MiG-15 , MiG-17 and MiG-19 aircraft carried a single A-12.7 machine gun. The main application of Afanasev's 12.7mm machine gun, however, was the armament of helicopters. The Mi-4A helicopter was equipped with a single gun with 200 rounds in the gondola below the fuselage . A single A-12.7 was also installed in the nose of the Mi-6A transport helicopter. The Mi-8TV had an A-12.7 machine gun in its nose as well and on

136-572: The Mi-6 still holds the FAI record of fastest 5- tonne lift over 1,000 km, in which it flew 284 km/h in 1962. From 1959 to 1972 at least 500 units were built for various general-transport, utility, firefighting and flying-crane duties, the last two sub-types not being fitted with the large fixed wings, which in other versions bear part of the lift in cruising flight and thus enable higher speeds to be attained. The twin nose wheels and large low-pressure main wheels do not retract. Normally flown by

153-604: The article number izdeliye 50 and company designation V-6, is a Soviet /Russian heavy transport helicopter that was designed by the Mil design bureau. It was built in large numbers for both military and civil use and was the largest helicopter in production until the Mil Mi-26 was put in production in 1980. The Mi-6 resulted from a joint civil-military requirement for a very large vertical-lift aircraft, which could be used to add mobility in military operations as well as assist in

170-438: The autumn of 1953, Afanasev's 12.7mm aircraft machine gun was adopted put into production under the designation A-12.7. The GRAU index of the weapon is 9-A-016P. The A-12.7 machine gun is a gas-operated weapon with a vertically moving wedge breechblock . On the actuating slide two pivoting, jointed chambering levers are mounted. Those chambering levers actually work like the arms of a praying mantis . The upper, longer lever

187-628: The barrel of the A-12.7 was the same as the one of the DShK heavy machine gun, with 8 grooves 0.17 mm deep and 2.8 mm wide. The A-12.7 machine gun never armed the Tu-4 bomber as initially intended. By then, machine guns were considered obsolescent for this purpose and 23mm cannon were employed instead. Therefore, the A-12.7 was only used in training aircraft and helicopters . The UTI trainer versions of

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204-500: The craft's sides in 1960 to the 30 pre-series units. These wings provide approximately 20% of the lift required during cruise flight. The Mi-6 was by far the world's largest helicopter when it was designed in 1954–56; with a maximum load capacity of 12,000 kg. It was also the world's fastest helicopter; with a top speed of 300 km/h (190 mph). In its early days, the Mi-6 set many world records, including one for sheer circuit speed at 340 km/h (211 mph). As of 2013 ,

221-460: The exploration and development of the expansive central and eastern regions of the USSR. Flown for the first time on 5 June 1957, the Mi-6 was the first Soviet turboshaft -powered production helicopter. The R-7 gearbox and rotor head developed for the project have a combined weight of 3200 kg, which is greater than the two turboshaft engines. Variable-incidence winglets were first mounted on

238-478: Was designated TKB-481 and reached an impressive rate of fire of 1,400 rounds per minute. However, because of barrel wear problems a special electrical trigger system was introduced, that artificially reduced the rate of fire to 800 - 1,100 rounds per minute. With this modification the barrel life increased to 4,000 rounds, however the gun no longer had any distinct advantages over the Berezin UB. Nevertheless, in

255-788: Was finally retired in October 2002 with its Type Certificate Revoke by The CIS Interstate Aviation Committee after the crash of RA-21074 in the Taimyr Peninsula . There have also been reports that the wooden tail rotor blades have reached the end of their service life. Data from: Mil's heavylift helicopters : Mi-6, Mi-10, V-12 and Mi-26 Former operators: [REDACTED] Democratic Republic of Afghanistan Data from Jane's All The World's Aircraft 1992–93, Mil's heavylift helicopters : Mi-6, Mi-10, V-12 and Mi-26 General characteristics Performance Armament The navigator's station can be equipped with

272-583: Was produced for 30 years. After the Second World War various attempts were made to increase the rate of fire of the Berezin machine gun. Reducing the cycle time by increasing the speed of the moving parts was the most obvious thing to do. However, this resulted in a considerable reduction of life and reliability. Another attempt was to reduce the motion length of the moving parts while retaining their speed within permissible limits. N. M. Afanasev took

289-532: Was supposed to have a considerably higher rate of fire than its predecessor, the Berezin UB aircraft machine gun. Due to excessive barrel wear however, it was eventually limited by an electrical trigger to a rate comparable to the Berezin UB. Initially intended to be mounted in the defensive turrets of the Tu-4 bomber, the A-12.7 was ultimately installed only in trainer aircraft and helicopters. Nevertheless, it

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