About 4500 MI-8 helicopters (the versions with TV2-117 engines) were manufactured till 1996 in Kazan plants, in Ulan-Ude this figure went to 3700 helicopters. Total output of these helicopters produced is the biggest in the world (together with MI-8МТ and MI-17, more than 11000 helicopters were produced). About 2800 from them were exported to more than 40 countries of the world.
State testings of MI-8T helicopter were completed in1964.bout 4500 MI-8 helicopters (the versions powered by TV2-117 engines) weremanufactured up to year 1996 in Kazan plants, in Ulan-Ude this figure went to 3700helicopters. The total output of these helicopters produced is the biggest in the world(together with MI-8МТ and MI-17, more than 11000 helicopters were produced). About2800 from them were exported to more than 40 countries of the world. Included hereare: Algeria, Angola, Afghanistan, Bangladesh, Bulgaria, Hungary, Viet Nam, Egypt,India, Iraq, Canada, China, Pakistan, USA, Poland, Rumania, Cuba, Japan, etc.Approximately 40 modifications of MI-8 helicopters were produced.
Analysis of statistical data related to operation of the fleet of helicopters as toyear 2009 shows that at the present time the fleet of MI-8T helicopters powered byTV2-117 engines is almost 5 times larger than the fleet of more updated MI-8MTVhelicopters powered by TV3-117 engines.Actually, annual operating time of MI-8T helicopters is also 5 times larger. At thesame time, operating time per 1 incident for MI-8T helicopter is larger by 1 56 timesthan for MI-8MTV helicopter, and prevailing causes of failures belong to TV2-117engine.Taking into consideration high operational reliability of MI-8T helicopter andsignificantly lower reliability of TV2-117 engine, and remembering also that theproduction of this engine is discontinued, while the life of the MI-8T airframe issufficient (at the present time) it does make sense to consider replacement of TV2-117engine with TV3-117VMA-SBM1V, series 4Е engine.
Distribution of “technical” incidents amongsystems of MI-8T helicopter
Tonnes of iron
Shot at Siege of Sebastopol during Crimean War
Revolutions per minute
Does a bullet fired from Lee Enfield rifle, as used in both world wars
The Nizam of Hyderabad raised in 1975 for his war against the Marathas
Is an effective range of Big Bertha, the World War I howitzer
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State Foreign Trade Enterprise “SpetsTechnoExport” is a fully state-run entity incorporated by the Government of Ukraine in 1998 for export-import activities at foreign armaments markets.
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