Sikorsky XP2S

XP2S-1
XP2S-1
General information
Type	Patrol flying boat
National origin	United States
Manufacturer	Sikorsky Aircraft
Primary user	United States Navy
Number built	1
Serial	A8642
History
First flight	June 1932

Last updated September 29, 2025

The Sikorsky XP2S was an American biplane patrol flying boat developed for the United States Navy during the early 1930s.

Design and development

After selling a small quantity of PS / RS patrol / transport amphibians to the Navy, Sikorsky (then a division of United Aircraft Corporation) endeavoured to interest the service in a patrol flying boat. Having received a development contract in mid-1930, Sikorsky delivered a complete aircraft for testing in June 1932.^[1] The XP2S-1, as the prototype was designated, was a two-bay, equal-span biplane of mixed construction. Its two R-1340 Wasp radial engines were mounted in a single nacelle in a tandem configuration.

Its overall performance did not exceed that of other biplane patrol boats of the era, and after approximately one year of official trials the Navy cancelled the project.^[1]

Operators

United States

United States Navy

Specifications (XP2S-1)

Data from United States Naval Aviation 1919-1941. Aircraft, Airships and Ships Between the Wars^[1]

General characteristics

Crew: 3
Length: 44 ft 2 in (13.46 m)
Wingspan: 56 ft (17 m)
Wing area: 762 sq ft (70.8 m²)
Empty weight: 6,040 lb (2,740 kg)
Gross weight: 9,745 lb (4,420 kg)
Powerplant: 2 × Pratt & Whitney R-1340 radial engine, 450 hp (340 kW) each

Performance

Maximum speed: 124 mph (200 km/h, 108 kn)estimated
Service ceiling: 13,900 ft (4,200 m)

Armament

Guns: 1× flexibly mounted .30 in machine gun in the bow; 1× flexibly mounted .30 in machine gun in the rear cockpit
Bombs: up to 1000 lbs

References

Citations

1 2 3 Johnson, E.R. (2011). United States Naval Aviation 1919-1941. Aircraft, Airships and Ships Between the Wars . Jefferson, North Carolina, and London: McFarland & Company, Inc. pp. 154-155. ISBN 978-0-7864-4550-9.

Bibliography

Johnson, E.R. (2009). American flying boats and amphibious aircraft : an illustrated history. Jefferson, N.C.: McFarland & Co. pp. 194–196. ISBN 978-0786439744.

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[Johnson-1] 1 2 3 Johnson, E.R. (2011). United States Naval Aviation 1919-1941. Aircraft, Airships and Ships Between the Wars . Jefferson, North Carolina, and London: McFarland & Company, Inc. pp. 154-155. ISBN 978-0-7864-4550-9.

[1]

v t e Sikorsky aircraft
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Helicopters (company designations)	VS-300 (S-46) S-47 S-48 S-49 S-50 S-51 S-52 S-53 S-54 S-55 S-56 S-57 S-58 S-59 S-60 S-61 S-61L/N S-61R S-62 S-63 S-64 S-65 S-66 S-67 S-68 S-69 S-70 S-71 S-72 S-73 S-74 S-75 S-76 S-80 S-92 S-95 S-97 S-100 S-102 S-103 S-300 S-333 S-434
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