High Quality Content by WIKIPEDIA articles!The Vought O5U was a 1930s prototype American observation floatplane to meet a United States Navy requirement for a catapult launched scouting aircraft. The contract was won by Curtiss who went on to produce the SOC Seagull; only one O5U was built.The United States Navy contracted three companies to produce prototypes to meet a requirement for a catapult launched biplane, with a central float and folding wings. Douglas produced the X02D-1, Curtiss the X03C-1 and Vought the XO5U-1.