08/31/2012. Remarks by Walter van Tilborg: "The RA-14/RA-17 series of light two-seat sport aircraft was designed by Roger Adam and built by Ets. Aéronautiques R. Adam.
The RA-14 Loisirs was mainly intended for construction by amateur builders and aero clubs, using Adam-supplied parts and components. The RA-14 made the first flight on March 16, 1946 and this aircraft was powered by a 40 hp Train engine. The RA-14 had a fabric covered fuselage and wings and was built in several variants, with engines in the 65-90 hp power range. The type was popular in the immediate post-war years and several dozens were built.
One example of the RA-14S Loisirs was built, featuring a plywood covered fuselage and several other features of the RA-15 model. In 1957 Maranda Aircraft in Canada acquired the marketing rights for the RA-14 and also developed several improved versions. Another homebuilt variant was available from Falconar, also in Canada.
The RA-15 Major was externally and dimensionally similar to the RA-14, but had a plywood covered fuselage, a much larger vertical tail and also featured improved systems. The first example made its maiden flight on April 13, 1947. Engine in the RA-15 was a 75 hp Régnier 4D-2. The RA-15/1 Major was similar to the RA-15, but powered by a 65 hp Continental A65 engine.
The RA-17 was a special version for use as ag-plane with spraying equipment under the wings and the chemicals hopper in the fuselage, making it a single-seat aircraft. Only a prototype was built which was modified from the second RA-15/1, and the sole RA-17 made a first flight on June 2, 1949.