The 1970 Chaparral 2J and 1978 Brabham BT46B used "active aerodynamics"
(as FIA termed them) -- we would term them "fans" -- to evacuate the
underside of the car and produce downforce. Both were banned, the
Chapparal from Can Am and the Brabham from F1.
- Bob Mann
William Schairer wrote:
>
> Wasn't there some guy, Jim Hall maybe, who designed an indy car that
> actually sucked the air out from underneath the car to create a
> vacuum. Even though I have never been into racing much, I remember
> it being a big controversy. In the only race of that type I've ever
> been to, I saw it race at Ontario back in the late 60's. The car
> didn't finish and I think was banned the next year.
>
> Bill
> San Diego
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