Once the car is in scrutineering, there is no airflow, but just airturbof1 wrote:Is there? Airflow is not only shaped by the car, it's used as an extention of the "bodywork" car in the shape of airflow structures, pressure zones, vortices etc.1.: Of course there is a big difference between the air flowing round the car and fluids or gases that are clearly a part of the car. You can not really count the air round the car as a part of it...so I like the thought that the fluids are a part of the car and influence aero.
The air around the car is part of the car, just as much as fluids inside the car are part of it.

This is getting too philosophical for me...sorry, I do not really know how I can discuss this. Even if I try to avoid every sort of common sense I do not know how to discuss the air around a car as a part of the car in the sense of movable bodywork.
It also means no aero-shaped suspension or stacked winglets-like brake ducts. Those are allowed, so why not fric?[/quote]3.: Other parts? I think there are plenty even if you do not like the fluid. §3.15 also has the point of "Bodywork rules" in it. So no part influencing the the aero may be flexible. That means: No flexible hoses, no springs, no valves.
The brake ducts: They are explicitly excludet from §3.15.
Aero-shaped suspension may be discussed as a part of the non-sprung part....but when it comes to other things like passive DRS or DDRS I do not know. Maybe these are just ok, because Charlie is not giving a $hit and can only concentrate on one thing per season...