The Stearman Model X-85 XOSS-1 was a conventional two-seater, with an enclosed cockpit seating the pilot and observer in tandem and could be flown with a conventional taildragger landing gear, or with a single-float with wing outriggers as shown above. It was powered by a 600 hp Pratt & Whitney
R-1340-36 nine-cylinder, air-cooled radial engine and featured full span flaps on the upper wing.
After the first flight in September 1938 and subsequent factory trials, the USN evaluated the XOSS-1 against the XOSN-1 and the XOS2U-1, the latter was declared winner in May 1939 and the the 1,218 produced examples became known as the Vought Kingfisher. The Stearman XOSS-1 was used as a liaison aircraft by the USN untill it was scrapped at NAS Jacksonville, Florida in 1941.
Span: 36 ft 0 in (11.00 m)
Length (on floats): 34 ft 6 in (10.52 m)
Height: 13 ft 0 in (4.00 m)
Gross weight: 4,791 lb (2,173 kg)
Max speed: 162 mph (261 kmh) at 6,000 ft (1,800 m)
Service ceiling: 18,500 ft (5,639 m)
Range: 832 mls (1,339 km)