|Prototype Felixstowe F.1 (No.3580)|
|Role||Military flying boat|
|Designer||John Cyril Porte|
|Primary users||Royal Naval Air Service
Royal Air Force
|Developed from||Curtiss H-4|
The Felixstowe F.1 was an experimental British flying boat designed and developed by Lieutenant Commander John Cyril Porte RN at the naval air station, Felixstowe based on the Curtiss H-4 with a new hull. Its design led to a range of successful larger flying boats that was assistance in promoting Britain as a leader in this field of aviation.
Before the war Porte worked with American aircraft designer Glenn Curtiss on a trans-atlantic flying boat. Due to the start of the Great War he returned to England, eventually to command of the naval air station at Felixstowe, Suffolk. Porte decided that the original Curtiss flying-boats that the Royal Navy acquired could be improved and a number of modifications to in-service flying-boats were made. The modifications had a mixed result so Porte using the experience gained, developed with his Chief Technical Officer John Douglas Rennie, a new single-step hull known as the Porte I.
The Porte I hull used the wings and tail unit of an original H-4 (No.3580) powered by two Hispano-Suiza 8 engines; the new flying boat was designated the Felixstowe F.1. During trials of the F.1 two further steps were added to the hull and a deeper V-shape which greatly improved the performance on take off and landing. Porte went on to design a similar hull, the Porte II for the larger Curtiss H-12 flying boat, which became the Felixstowe F.2.
- Royal Naval Air Service
- Royal Air Force
Data from 
- Crew: four
- Length: 36 ft in ( m)
- Wingspan: 72 ft in ( m)
- Wing area: 842 ft2 ( m2)
- Powerplant: 2 × Hispano-Suiza 8, 150 hp ( kW) each
- 2 × Anzani 10-cylinder, 100 hp ( kW) each
- Maximum speed: Unknown mph ( km/h)
- Related development
- Aircraft of comparable role, configuration and era
- Related lists
- Chorlton, Martyn, ed. (2012). Aeroplane Collectors' Archive: Golden Age of Flying-boats. Kelsey Publishing Group, Cudham, Kent. p. 23. ISBN 978-1-907426-71-1.
- Orbis 1985, p. 1775
- Rennie, Major John Douglas (1923). Pritchard, J. Laurence, ed. "SOME NOTES ON THE DESIGN, CONSTRUCTION AND OPERATION OF FLYING BOATS". The Journal of the Royal Aeronautical Society. University of Toronto: Royal Aeronautical Society. XXVII: 136–137. Retrieved 25 September 2015.
- "British Anzani - a company history". THE BRITISH ANZANI ARCHIVE. British Anzani Archive. 2000. p. 1. Retrieved 18 September 2015.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
|Wikimedia Commons has media related to Felixstowe Flying Boats.|
- Sons of Our Empire: Film of the Royal Naval Air Service at Felixstowe taken after the Battle of Jutland, including John Cyril Porte studying a map with some other officers, Curtiss Model H-2 and prototype Felixstowe F.1 (No. 3580) fitted with Anzani engines, Porte and Commodore George C. Cayley RN returning from a flight in a Felixstowe F.1; Porte, Cayley and Commander Hubert Lynes RN together, 1916.
- "The Felixstowe Flying-Boats - part 1" a 1955 Flight article
- "The Felixstowe Flying-Boats - part 2" a 1955 Flight article
- "F-Boats - A Postscript by an Ex-pilot" a 1956 Flight article on the Felixstowe flying boats
- Felixstowe Flying-Boats