Curtiss H

The Curtiss H series was a family of early flying boats developed by Curtiss Aeroplane and Motor Company in the United States during the First World War. The "H" designation stood for "hydro," reflecting their seaplane nature. They were among the first aircraft to be produced in significant numbers for naval aviation, primarily for anti-submarine patrol and reconnaissance.

The initial variant was the H-1 America, designed in 1914 as a transatlantic aircraft commissioned by Rodman Wanamaker. The outbreak of World War I prevented this project, and the design was subsequently adapted for military use.

Later variants included the H-4 Small America and the significantly larger H-12 Large America. The H-12, in particular, saw widespread service with the Royal Naval Air Service (RNAS) and later the Royal Air Force (RAF) in Great Britain. These aircraft were notable for their improved performance and armament compared to the earlier H-boats.

The Curtiss H flying boats played a crucial role in the Allied war effort, contributing to the protection of shipping lanes and providing valuable intelligence. Their success helped establish the viability of flying boats as a valuable platform for maritime patrol and search and rescue operations, influencing future aircraft designs.