MDR-4
Long-range reconnaissance seaplane and torpedo-bomber

	Specification:	MTB-1
	Year deployed Wing span, m Lenght, m Height, m Wings area, m2 Weight, kg - empty aircraft - normal take-off Engine Power, hp Maximum speed, km/h - on sea level - in altitude Cruising speed, km/h Range, km Endurance, h Rate of climb, m/min Service ceiling, m Crew Armament:	- 1936 - 39.40 - 21.90 - 6.47 - 177.50 - 10521 - 16250 - 3 PE M-34п - 3 X 830  - 225 - 200 - 196 - 2000 - 11 - 185 - 4470 - 3 5 7.62-M machine-guns DA-2 900 kg bombs normal,  Maximum -1900 kg or 2 940-kg torpedos