Beriev MDR-5

The first prototype flew as an amphibian in May 1938. The second prototype was built as a flying boat. Only two were built.

Engine: 2 x M-87A, 950hp
Take-off weight: 8795 kg / 19390 lb
Empty weight: 6083 kg / 13411 lb
Wingspan: 25.0 m / 82 ft 0 in
Length: 15.9 m / 52 ft 2 in
Wing area: 78.5sqm / 844.97 sq ft
Max. speed: 350 km/h / 217 mph
Ceiling: 8700 m / 28550 ft
Range: 1150-2415 km / 715 - 1501 miles