Curtiss HS

HS
A Curtiss HS-2L
Role	Patrol flying boat Type of aircraft
Manufacturer	Curtiss
First flight	1917
Introduction	1918
Retired	1928 (USN) 1926 (USCG)
Status	Retired
Primary users	United States Navy Canada, Portugal
Produced	1917-1919
Number built	ca. 1,178

The Curtiss HS was a single-engined patrol flying boat built for the United States Navy during World War I. Large numbers were built from 1917 to 1919, with the type being used to carry out anti-submarine patrols from bases in France from June 1918. It remained in use with the US Navy until 1928, and was also widely used as a civil passenger and utility aircraft.