Why The Mil Mi-4 Was The Most Popular Helicopter of Its Day!
When it comes to Cold War-era Soviet helicopters, very few stand out among the rest. One, however, stands taller than the rest: the Mil Mi-4, which remains the sixth most produced military helicopter ever built - despite having been out of production for over 40 years!
Produced between 1952 and 1979, Mil built over 4,000 Mi-4s which went on to become the workhorse of most of the Eastern Bloc's militaries. In many cases, the Mi-4 continued to serve long after the Cold War ended, whilst in others, it was retired long before.
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Background
In 1947, the Soviet Government established a helicopter research laboratory under the direction of Mikhail Mil, one of the Soviet Union’s foremost experts on autogyros (the precursor...