Douglas DF

The Douglas DF was a commercial flying boat built by Douglas Aircraft Company in the 1930s. It could accommodate 32 passengers, or 16 in sleeper cabins. The prototype and first production aircraft were sold to the Soviet Union as DF-195's; the final two aircraft, as DF-151's, were bought by the Japanese Navy through the South Pacific Mandate. These were evaluated under designations HXD-1 and HXD-2, the latter crashed in August 1938.