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unusual facts about Dobrynin VD-4K


Dobrynin VD-4K

It was most notably fitted to the two prototypes of the Tupolev Tu-85 bomber, but the aircraft, and its engines, was not placed into production because of the promise offered by turboprop engines of immensely more power, like the Kuznetsov NK-12 used on the Tupolev Tu-95 strategic bomber.


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