Some scans of old photos featuring aviation.
I believe that the Mi-4s where the first helicopters to successfully fly in Antarctica they where called Mi-4Schch and where modified. I cant really find anything about the expeditions.
The Mi-4 entered use in 1951 it was a second generation design back then they still used radial piston engines the Mi-4. The Mi-8 is basically a larger version of the Mi-4 using gas turbine engines and having much better performance.With radial engines designers where forced to place the engine in the nose of the aircraft and the cockpit above.
Li-2 is license copy of US Boeing DC-3
Not Boeing. Douglas.
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