Yokosuka Ro-gō Type A
The Yokosuka Ro-gō Type A was a Japanese reconnaissance floatplane developed during the First World War by the Japanese Navy Arsenal at Yokosuka, and one of the first indigenous Japanese aircraft to enter production. There were 218 of these aircraft built for the Imperial Japanese Navy, which remained in use until 1928.
Development and design
The Japanese Navy Arsenal at Yokosuka became involved in aircraft production in 1913, when an aeroplane factory was set up, with its first work being to build several Maurice Farman and Curtiss Aeroplane and [Motor Company|Curtiss] Seaplanes. It continued to build aircraft under license, including more Farman aircraft and several Short 184 seaplanes, as well as prototypes of several of its own designs.In 1917, Chikuhei Nakajima, chief designer of the Yokosuka Arsenal aircraft factory designed a new reconnaissance floatplane. A prototype of this new design, powered by a 140 hp Salmson water-cooled radial engine, made its maiden flight early in 1918. Test results were good, and the type was ordered into production as the Ro-gō Type A.
The Ro-gō Type A was a three-bay biplane of wood and fabric construction, with twin main floats and wings that folded backwards for storage. Its crew of two sat in separate, closely spaced cockpits. Initial production aircraft were powered by 200 hp Salmson engines, but the majority of production aircraft were fitted with 200–220 hp Mitsubishi-built Hispano-Suiza 8 V-8 engines.
A total of 218 aircraft were built in total, 32 by the Yokosuka arsenal, 80 by Aichi and 106 by the Nakajima Aircraft Company, with production continuing until 1924. It was the first locally-designed aircraft to be built in large numbers for the Japanese Navy.