Aero is not worth on production cars (generally speaking) as it´s only worth at not legal speeds (lucky you germans), and it also is more or less banned because of pedestrian safety.
But a fan car would creat DF at any speed, even standing still, so it would be worth, and actually it would improve both accelerations and braking even at road legal speeds, and it would do that without any appendix wich wouldn´t be safe for pedestrians so, what´s the reason no manufacturer did it?
Another strong point would be it can be activated or deactivated, to maximice grip or fuel economy.
Probably because of bumps, so my question is, what´s the max clearance (skirt-tarmac) wich a fan car could handle and still create DF? I know it will depend on many factors, specially fan power, so if we consider a fan similar to those used in F1 a long time ago, what would be max clearance to still be effective?
Also, when you see cars like LaFerrari with active aero all around, including diffusers, I can´t stop thinking if they use all that technology for active skirts they might achieve much higher DF levels?
There are many cars with sensors analysing road to adjust suspensions accordingly, so they may use similar sensors to adapt active skirts height... or not?
There must be some more reason I´m missing, so I´ve started this thread
