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Role commercial passenger flying-boat
National origin United States
Manufacturer Douglas Aircraft Company
First flight 1936
Introduction 1930s[1]
Number built 4 (1 prototype, 3 production)

The Douglas DF was a commercial flying boat built by Douglas Aircraft Company, first flown on 24 September 1936.

Design and development

The DF could accommodate 32 passengers, or 16 in sleeper cabins, and was the last flying boat built by the company.

Despite acceptable handling and performance within design specifications, no commercial orders were forthcoming and faced with no domestic market for aircraft already built, the company obtained export permits for them. The first two production aircraft were sold to Japan, ostensibly for commercial airline use. The second aircraft was lost on a survey flight in 1938. The second production pair were sold (as DF-195's) to the Soviet Union and after winterizing, were disassembled and transported to Russia via ship, where they were operated as transports by Aeroflot.


Specification/designation of the first two aircraft sold to Japan.
Specification/designation of the second two aircraft sold to the Soviet Union.


Data from Jane's all the World's Aircraft 1937,[2] McDonnell Douglas aircraft since 1920 : Volume I,[3] Biplanes, Triplanes, and Seaplanes,[1] NICO BRAAS COLLECTION, No. 9317. Douglas DF-151[4]

General characteristics


178 mph (155 kn; 286 km/h) at 5,000 ft (1,500 m)
156 mph (136 kn; 251 km/h) at 75% power at 5,000 ft (1,500 m)
164 mph (143 kn; 264 km/h) at 75% power at 9,600 ft (2,900 m)
3,300 mi (2,900 nmi; 5,300 km) with 12 passengers
585 ft/min (2.97 m/s) at 5,000 ft (1,500 m)


  1. ^ a b Sharpe, Michael (2000). Biplanes, Triplanes, and Seaplanes. London: Friedman/Fairfax Books. p. 162. ISBN 1-58663-300-7.
  2. ^ Grey, C.G.; Bridgman, Leonard, eds. (1937). Jane's all the World's Aircraft 1937. London: Sampson Low, Marston & company, ltd. pp. 294c–295c.
  3. ^ Francillon, René J. (1988). McDonnell Douglas aircraft since 1920 : Volume I. London: Naval Institute Press. pp. 251–253. ISBN 0870214284.
  4. ^ "NICO BRAAS COLLECTION, No. 9317. Douglas DF-151". 31 October 2009. Retrieved 10 April 2015.