Hispano-Suiza 18R
The Hispano-Suiza 18R was an eighteen-cylinder high performance water-cooled piston engine, in an 80° W or broad arrow layout, for use in racing aircraft, built in France during the latter half of the 1920s. == Design and development == The French Ministère de l’Air did not enter the Schneider Trophy seaplane race for several years, but decided to enter the 1929 competition.