GM aero patents (includes active side skirts for drag reduction)

[sendler]

Ford GT active wing and flaps.
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https://www.ford.com/performance/gt/#video_aero
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[gone-ot]

Originally Posted by sendler

Ford GT active wing and flaps.
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https://www.ford.com/performance/gt/#video_aero
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The orange-white disc brake was impressive!

[teoman]

Ideally how far down should the side skirts go?

And would their angle be important? Full vertically down? Inward? Outward a bit?

[freebeard]

Ideally, sealed to the road surface. Practically, it depends....

The angle might not matter, but resistance to sideways movement will.

[teoman]

If they would fold under the car. One could make it going all the way to the ground as speed increases.

What kind of forces are we talking about? Coroplast grade or something much stirdier.

[kach22i]

Originally Posted by sendler

Ford GT active wing and flaps.
.
.
https://www.ford.com/performance/gt/#video_aero
.
.

Good link, thanks.

[Vman455]

Originally Posted by sendler

Ford GT active wing and flaps.
.
.
https://www.ford.com/performance/gt/#video_aero
.
.

Don't forget Porsche 918:



Bugatti Veyron:



Bugatti Chiron:



McLaren P1:



McLaren 720S:



Ferrari LaFerrari (active wing and diffuser!):



Koenigsegg Regera:



And for the plebes, 2019 Dodge Ram:



I'm guessing if these skirts ever show up on a Corvette, they'll be more like the Ram's air dam than a hypercar's spoiler: unpainted plastic that is easily replaceable and inexpensive.

Edit: The Porsche 918 also has active flaps underneath, to reduce or increase airflow to the front wheels for brake cooling:

[freebeard]

Pagani Huayra?




Ford GT?



https://www.whichcar.com.au/features...ypercar-heroes

[Vman455]

And the Lamborghini Huracan Performante, if we count active airflow with no moving spoilers. Then, there are the cars that moved from active aerodynamics to fixed, like the Tesla Model X which now only has a fixed rear spoiler.

The other day I noticed my neighbor's Porsche 718 Cayman has a retractable spoiler. There are probably a bunch more I don't know about!