Kawanishi K-10

The Kawanishi K-10 Transport was a passenger and mail biplane of the 1920s, designed by Eiji Sekiguchi for the difficult over-water route between Osaka, Seoul and Dalian, cities that were then Japanese possessions. It was a single-bay biplane with a fabric covered wooden structure, a flat-sided fuselage with rounded decking and fixed conventional landing gear with conspicuous square shock absorbers. It first used a 400 horsepower Lorraine 12D V12 engine, with two passengers side by side in an open cockpit ahead of the pilot, but this was soon replaced by a six cylinder Maybach Mb.IVa and an enclosed cabin with four passenger seats between the wings. The first of two was completed in August 1926 and in September it joined the sole Kawanishi K-7B carrying mail on the Osaka, Seoul and Dalian route, completing six tours before its retirement. On 2 October 1926 it also carried passengers at the Kansai Aviation Day display.