Supermarine S.6
The Supermarine S.6 (later designated the S.6A) is a 1920s British single-engined single-seat racing seaplane built by Supermarine and designed by its chief designer, R.J. Mitchell, who refined the earlier Supermarine S.5 to produce a larger, more powerful aircraft. Two aircraft, N247 and N248, were built to participate in the 1929 Schneider Trophy contest.