|Primary user||U.K. (RNAS)|
|Wingspan||28.3 m (93 ft)|
|Engine||2×250hp Rolls-Royce Eagle VIIIs|
|Armament||1 forward flexible Lewis and|
one limited-arc rear-firing Lewis
4×29 kg (65 lb) bombs
|Max Speed||137 km/h (85 mph)-150 km/h (93 mph)|
|Climb||6,000 ft (1,800 m) in 14:30|
12,000 ft (3,700 m) in 60:00
|Service Ceiling||10,800 ft (3,300 m)-12,000 ft (3,700 m)|
The history of the Curtiss H-8 is somewhat muddled, but it is clear that the first of the new larger flying boats as successors to the Curtiss H-4 were named the H-8 by the British. The first remained in its original configuration with twin 160hp Curtiss engines; the rest were the order of fifty were refitted with 250hp Rolls-Royce engines and re-designated the H-12. 
The fifty Curtiss H.12 "Large America" were ordered in Britain and began arriving in March 1916. The new engines increased the plane's capabilities remarkably.
There is some confusion over the difference between H.12s, H.12Bs, and H.16s. After the initial batch with the 250hp engine, another twenty-four were upgraded with the 375hp Rolls-Royce and were designated the H.12B, and a further fifteen were ordered as H.12s without engines, delivered as H.16s, and fitted with the 375hp Rolls-Royce. Other sources, rather than equating the H-16 with re-engined H-12s, designate the H-16 as a larger airplane using the 400hp Liberty.
Lessons learned from flying the H.12s led to the excellent Felixstowe F.2, with a stronger hull and improved hydrodynamics.
Perhaps the H.12's finest moments were on 14 May 1917 when a RNAS Curtiss shot down the Zeppelin L22 and on 14 June 1917 when L43 was shot down by another. H.12 operated widely and had frequent encounters with German seaplanes and submarines.
For more information, see Wikipedia:Curtiss Model H.
Miniatures and Models
- Shapeways: Reduced Aircraft Factory
- Nowarra, pp.206-207.
- Munson'71, p.25.
- Munson'76, p.90.
- Owers, p.36.
- Owers, p.1.
- Kenneth Munson, Bombers: Patrol and Reconnaissance Aircraft, 1914-1919. New York: The MacMillan Company, 1968, Blandford Press Ltd. ISBN 978-0753721711
- Kenneth Munson, Flying Boats and Seaplanes since 1910. New York: The MacMillan Company, Blandford Press Ltd., 1971.
- 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