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Douglas Dolphin C-21 / C-26 / OA / RD

 

douglasdolphin


Developed from the one-off Sinbad operated by the US Coast Guard, the 1930 Dolphin was a six-eight-seat amphibian which was originally produced for commercial use. Its success, both with airlines and private operators, attracted the attention of the US government, with the result that contracts were awarded for the Army, Navy and Coast Guard. The Army received 24 as transports, bearing the designations C-21 and C-26, later becoming OA observation amphibians; while the Navy and Coast Guard received 10 and 13 respectively as RD transports.

Douglas Dolphin
Engine : 2 x Pratt&Whitney R-1340-96 Wasp, 444 hp
Length : 45.079 ft / 13.74 m
Height: 14.009 ft / 4.27 m
Wingspan : 60.007 ft / 18.29 m
Wing area : 592.02 sqft / 55.0 sq.m
Max take off weight : 9532.2 lb / 4323.0 kg
Weight empty : 7000.9 lb / 3175.0 kg
Max. speed : 136 kts / 251 km/h
Cruising speed : 117 kts / 217 km/h
Service ceiling : 16995 ft / 5180 m
Wing load : 16.20 lb/sq.ft / 79.00 kg/sq.m
Range : 626 nm / 1159 km

C-21

Engine: 2 x Wright R-975-3, 261kW
Max take-off weight: 3893 kg / 8583 lb
Loaded weight: 2659 kg / 5862 lb
Wingspan: 18.29 m / 60 ft 0 in
Length: 13.36 m / 43 ft 10 in
Height: 4.29 m / 14 ft 1 in
Wing area: 52.21 sq.m / 561.98 sq ft
Max. speed: 225 km/h / 140 mph
Cruise speed: 192 km/h / 119 mph
Ceiling: 4330 m / 14200 ft
Range: 885 km / 550 miles

 

doug-c21-ld

 


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