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Elliptical wing - Wikipedia
Supermarine Spitfire - Wikipedia
The Spitfire’s elliptical wing explained - Key.Aero
The Perfect Airplane Wing | Smithsonian
Supermarine Spitfire variants: specifications, performance and …
Spitfire wings: light, strong and fast - Fly a Spitfire
Spitfire – History of the Spitfire's design and development
Supermarine Spitfire - Aviation History
The Science Behind the Spitfire – Part 1: Wonderful Wings