During the 1929 race at Cowes between Great Britain and Italy, Richard Waghorn flying the Supermarine S.6 with the new Rolls-Royce R engine retained the Schneider Trophy for Great Britain with an average speed of , and also gained the 50 km and 100 km (31 mi and 62 mi) world speed records. The records were subsequently beaten when Richard Atcherley later registered higher speeds when he completed his laps of the circuit. The Italian team placed second and fourth using Fiat AS.3 V-12-powered Macchi M.52 aircraft. Another racing seaplane, the Fiat C.29 powered by the AS.5 engine attended the contest but did not compete.