Red Bull still seeking wing clarification

Red Bull Racing is still pushing the FIA for further clarification about the legality of the DRS system on the Mercedes-Benz, as it continues to question whether the concept complies with the regulations. Although motor racing's governing body has twice ruled that the DRS-activated F-duct - which helps stalls the front and rear wings for a straight-line speed boost ? is fully legal, that has not stopped attempts by Red Bull Racing and Lotus to get it outlawed. Red Bull team principal Christian Horner told Sky's 'F1 Show' that he expected further progress on the matter to take place ahead of the Chinese Grand Prix, when a ruling from the head of F1's technical department Charlie Whiting is expected

ppi2pass surveying equipment land surveyors