Sikorsky XP2S

The Sikorsky XP2S was an American biplane patrol flying boat developed for the United States Navy in the early 1930s. After selling a small number of PS and RS patrol and transport amphibians to the Navy, Sikorsky, then a division of United Aircraft Corporation, received a development contract in mid-1930 and delivered a complete aircraft for testing in June 1932. The XP2S-1 prototype was a two-bay, equal-span biplane of mixed construction with two Wasp radial engines mounted in tandem in a single nacelle, and a crew of three. Its performance did not exceed that of other biplane patrol boats of the era, and after about a year of official trials the Navy cancelled the project.