McLaren MP4-29 - low-downforce rear wing 24 August 2014
McLaren introduced a new, low-downforce rear wing for Belgium, utilising the same toothed slot gap concept seen in Germany, but in revised form developed specifically for the unique Spa-Francorchamps circuit. On this version the teeth are only on the leading edge of the flap. The teeth induce vortices traveling up the lower surface of the flap, helping the airflow on the underside of the wing to re-attach faster after the DRS has been used, which aids braking stability. New rear wing endplates were also introduced with no turning vanes on the outer surface, and the monkey seat (inset) was removed, both changes made in the interests of drag reduction.