The Supermarine S.4 was a 1920s British single-engined monoplane built by the company Supermarine. Designed by a team led by the company's chief designer, R. J. Mitchell, it was designed to compete in the 1925 Schneider Trophy contest.
The Supermarine S.4 was a 1920s British single-engined monoplane built by the company Supermarine. Designed by a team led by the company's chief designer, R. J. Mitchell, it was designed to compete in the 1925 Schneider Trophy contest.
Source: Wikipedia "Supermarine S.4" · CC BY-SA 4.0
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