Originally Posted by BrokenVert
As a study of aerodynamics, I really dont get these noses. Id love to see the CFD data on these things to figure out what they actually accomplish. I just see loads of drag
The step isn't areodynamic, it is to meet a minimum front height requirement that created a theoretical "no build zone" that extends all the way back to where the step occurs at.
The reason is said to make it safer for drivers so the nose heights don't excede the side impact height of the sidepod and prevent another car's nose from being able to directly strike a driver's helmet.
The resulting step is from the teams pushing the absolute limit of the rules, as the higher the front nose goes the cleaner the air will be as it hits the main car body and the undertray.