How a pre-war floatplane racing series - saved by a private widow's check - became the crucible that produced the Spitfire and the Rolls-Royce Merlin engine.
How fifteen years of Schneider Trophy seaplane racing - and the genius of R.J. Mitchell - directly produced the Supermarine Spitfire that defended Britain in 1940.
R.J. Mitchell designed the Supermarine Spitfire's revolutionary elliptical wing while dying of cancer at 42 - and the aircraft outlived him to define the Battle of Britain.
The Supermarine Spitfire emerged from racing floatplanes and a dying engineer's final obsession - its elliptical wing and Merlin engine shaping the outcome of the Battle of Britain.
The Schneider Trophy seaplane races of the 1920s and 1930s directly produced the engineering breakthroughs that made the Supermarine Spitfire - and Britain's survival in 1940 - possible.