British Salmson Aero Engines Ltd. was established in 1930 in Kaynes Park, London, as a successor to the French-controlled Moteurs Salmson, with financial backing from the Martineau family. The company initially aimed to supply engines for the light aircraft industry, achieving limited success with some engines sold to British Klemm and powering at least one Cierva Autogiro. However, due to the need for alternative work, British Salmson began…