IndyCar has made the following areas on the car open for aerodynamic modifications: Sidepods, engine cover and oval front wing main plane and end plates. (sbnation.com)
The hydraulically operated systems trim the trailing edge of the front diffuser and opens up the slot between the rear wing main plane and the flap respectively in order increase the aerodynamic efficiency of the Evo. (greencarcongress.com)
This purpose of this section is to provide a summary of the muscle moment arms of the calf muscles in each of the main planes of movement. (strengthandconditioningresearch.com)