Douglas T2D

The Douglas T2D was an American twin-engined torpedo bomber that had to be usable on wheels or floats and able to operate from aircraft carriers, and it was the first twin-engined aircraft operated from an aircraft carrier. In 1925 the Navy Bureau of Aeronautics designed the type, and a single prototype was built by the Naval Aircraft Factory as the XTN-1, followed by three identical aircraft built by Douglas as the T2D-1. It was a large two-bay biplane with a crew of four. The first three T2D-1 aircraft were delivered to torpedo squadron VT-2 on 25 May 1927 and used for successful trials aboard the carrier Langley; nine more were ordered and normally flown as floatplanes, and in 1930 eighteen P2D-1 patrol floatplanes were ordered, flown until replaced by Consolidated PBYs in 1937.