The
Alliance Aeroplane Company which had constructed aircraft under licence during the
First World War decided to build aircraft for the civil market. They took over the
Ruffy, Arnell and Baumann Aviation Company and acquired the
Ruffy-Baumann R.A.B.15 training biplane. The R.A.B.15 had been built in 1918 and was powered by an
Renault piston engine. Peters re-designed the aircraft mainly adding a horn balanced rudder and he improved the landing gear and it was re-designated the Alliance P.1. The aircraft was scrapped in November 1920. ==References==