| F5L | |
|---|---|
 Curtiss F5L patrol plane at Pensacola Naval Air Station | |
| General information | |
| Type | Military flying boat |
| National origin | United Kingdom |
| Manufacturer | Naval Aircraft Factory (137) Curtiss Aircraft (60) Canadian Aeroplanes Limited (30) |
| Designer | |
| Primary users | United States Navy |
| Number built | 227 |
| History | |
| Introduction date | November 1918 |
| First flight | 15 July 1918[1] |
| Retired | 1928 |
| Developed from | Felixstowe F.5 |
| Variants | Naval Aircraft Factory PN |
The twin-engine F5L was one of the Felixstowe F series of flying boats developed by John Cyril Porte at the Seaplane Experimental Station, Felixstowe, England, during the First World War for production in America.
A civilian version of the aircraft was known as the Aeromarine 75.