11. A wing with a conventional aerofoil profile makes a negative contribution to longitudinal stability. 12. Rotational sails have aerofoil shape on the leeward side only when filled with wind. 13. One such design is called the supercritical aerofoil . 14. His findings underpin all modern aerofoil design. 15. Lotus was the first team to use aerofoil wings, which appeared partway through 1968. 16. The wings were braced by interplane I-struts of broad aerofoil cross-section. 17. Axial compressors rely on spinning blades that have aerofoil sections, similar to aeroplane wings. 18. The design, by Foster and Partners, incorporates a sweeping aerofoil shaped roof canopy. 19. The aerofoil section was a NACA laminar flow one to have a low profile drag. 20. The axle was enclosed within an aerofoil shaped fairing which added to the wing area.
