For the 1971 Formula One season March Engineering came up with the remarkable 711 chassis, which had aerodynamics by Frank Costin and an ovoid front wing described as the Spitfire (for its shape) or "tea-tray" (for its elevation from the car) wing.
Para a tempada de Fórmula Un de 1971 March Engineering deseñou o chasis 711, con aerodinámica de Frank Costin e un alerón dianteiro ovoide descrito como o Spitfire (pola súa forma) ou á 'bandexa de té' (pola súa elevación desde o coche).