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 productio
Curtiss F5L patrol plane at Pensacola Naval Air Station
The first Naval Aircraft Factory F5L, 24 July 1918.
Aeromarine 75 Columbus flying over Bimini in the Bahamas, 1921.
The Hiro H1H was a 1920s Japanese bomber or reconnaissance biplane flying boat developed from the Felixstowe F.5 by the Hiro Naval Arsenal for the Imperial Japanese Navy. The aircraft were built by Hi
Late production H1H1 on a launching trolly.
H1H2 side elevation, all-metal hull with Dornier-type external stiffeners.