Douglas YOA-5

The Douglas YOA-5 was an amphibious aircraft built for the United States Army Air Corps and based on the Navy's Douglas XP3D patrol flying boat. Ordered in November 1932 as the YB-11 amphibious reconnaissance bomber, it was meant to lead formations of bombers and rescue crews, and was redesignated YO-44 and then YOA-5 before completion. A high-winged monoplane with two Wright Cyclone radial engines above the wing, it resembled an enlarged Douglas Dolphin. It first flew in January 1935 and was delivered that February. The concept proved impracticable and only one was built, though it set two world distance records for amphibians before being scrapped in December 1943.