The Mil Mi-6 (NATO reporting name Hook) was a Soviet/Russian heavy transport helicopter designed by the Mil design bureau and built in large numbers for both military and civil roles.
-The Mi-6 was first flown in September 1957. Getting this large vehicle in the air is no easy task; the Mi-6 has an enormous gearbox, heavier than its engines, and often uses short wings to relieve the load on the rotor in cruise. Not only was it for a long time the largest helicopter in the world, it was also the fastest with a speed of 300 km/h. Its maximum load capacity is 12,000 kg.
When designed in 1954-56 it was by far the largest in the world, and even today its dynamic components of engines, gearbox, rotors and drive shafts are considered state-of-the-art. In its early days this helicopter set many world records, including one for sheer circuit speed at over 211 mph (340 km/h). In 1959-72 a total production of at least 500 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 a crew of no fewer than five, 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 APCs (Armoured personnel carriers), armoured cars and light MICVs (mechanised infantry combat vehicles) can be carried.
The CIS Interstate Aviation Committee cancelled the Mi-6\'s Type Certificate in October 2002 after the crash of RA-21074 in the Taimyr Peninsula.[3] There have also been reports that the wooden tail rotor blades[3] have reached the end of their service life.
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