| Mil Mi-8 (Hip) |
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| The Mi-8 was originally planed as an improved version of the Mil Mi-4. As development progressed, the design evolved into a much larger and different helicopter. First flight was in 1961 and in 1962 the design was further improved by the addition of a second turbine engine. Production started and it went into service with Warsaw Pact countries in 1967. |