A detailed and comprehensive survey of some of the largest production helicopters ever built. These aircraft were developed by the OKB design bureau in the 1950s in response to a need within the Soviet Union for a heavy transport and assault helicopter capable of airlifting cargos weighing up to 6 tons.
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A detailed and comprehensive survey of some of the largest production helicopters ever built. These aircraft were developed by the OKB design bureau in the 1950s in response to a need within the Soviet Union for a heavy transport and assault helicopter capable of airlifting cargos weighing up to 6 tons.
Read Less
