|Number built||62 |
|Engine||2×90hp Curtiss OX or|
2×100hp Anzani or
Two Curtis H-4 America flying boats were delivered from America to the U.K. in November 1914. Those planes may have originally been named the Curtiss H-1s, and they were the prototypes for the rest of the line. Orders for twelve more followed in early 1915. All of the British H-4's were refitted with larger engines that the original 100hp Curtiss engines. Later in 1915 another fifty were ordered and they were refitted with 100hp Anzani engines. The H-4s were always underpowered and they were mostly used for training duties, though some were used for patrol flights. 
Those with the original Curtiss engines became known as the America 950 type and they carried 12×9.1 kg (20 lb) or 2×45 kg (100 lb) bombs; those with the 160hp Curtiss engines were known as the America Improved and carried up to 4×45 kg (100 lb) bombs. The type was declared obsolete in August 1918 and only three survived the war.
For more information, see Wikipedia:Curtiss H-4.
- Owers, p.36.
- Munson, p.163
- Owers, p.1.
- Nowarra, p.146.
- Kenneth Munson, Bombers: Patrol and Reconnaissance Aircraft, 1914-1919. New York: The MacMillan Company, 1968, Blandford Press Ltd. ISBN 978-0753721711
- Heinz J. Nowarra, Bruce Robertson, and Peter G. Cooksley. Marine Aircraft of the 1914-1918 War. Letchworth, Herts, England: Harleyford Publications Limited, 1966. ISBN 0900435070
- C.A. Owers, Windsock Datafile 125: Curtiss H.12. Great Britain: Albatros Publications Ltd., 2007. ISBN 1-902207-94-7