The MDR-3 (a.k.a.11) was a long-range flying boat designed and built in the USSR from 1931. == Development == In 1931, Chyetverikov was commissioned to design a new long-range flying boat for MA (Morskaya Aviatsiya – naval aviation).
The MDR-3 (a.k.a.11) was a long-range flying boat designed and built in the USSR from 1931. == Development == In 1931, Chyetverikov was commissioned to design a new long-range flying boat for MA (Morskaya Aviatsiya – naval aviation).
Source: Wikipedia "Chyetverikov MDR-3" · CC BY-SA 4.0
Share this article: X · Bluesky