The Lotus F1 Team has lodged a formal protest with the Chinese Grand Prix stewards against the DRS-activated f-duct run by Mercedes so far this year.
The device, which reduces front wing drag when the DRS is deployed, results in higher straight-line speeds, but other teams have questioned it’s legality.
Article 3.15 of the technical regulations prohibits the driver from influencing the aerodynamics of the car, with the exception of activation the DRS system. Lotus argue that the DRS-duct is driver-activated, while Mercedes counter that it is a secondary effect of the Drag Reduction System.
The debate is crucial because with chassis homologated for the entire season, it may be impossible for some teams to implement their own version of the system – similar to the McLaren F-duct in 2010.
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