Quote:
Originally Posted by aerohead
From later research,it appears that there is a distinct advantage to cutting as much airflow off as possible to the underside. Even with a perfect belly pan.
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Thank you for giving that scanned book image some context.
The said advantage of cutting airflow to the underside most likely applies to drag alone, and not complete vehicle dynamics of trying to keep a car planted at speed.
Air will get under there no matter what, and you have to manage it.
Air management of the underside beyond that of a smooth belly pan will bear this out with
ground effects in mind.
I'm also guessing that reducing the amount of air under the vehicle and as tested did not include increasing the frontal area, otherwise the results would have been tainted and perhaps opposite of desired.