Anybody know the angle of attack of the rear wing on the Evo 8?

 

Why do you wanna know..just curious

 

I don't know the precise angle of the Evo wing, but I'm thinking it's very small (<5°). Angle of attack doesn't really work in this case, since the angle of the wings motion (essentially horizontal) isn't the same as the angle of the wing relative to the air flow (since the air flow is coming down off the roof).

 

I figured the air flow would be nice and pretty, but thought it could give me an idea of the downforce being created at certain speeds. Therefore figuring exactly how 'functional' the wing really is. The should answer 'Evo Wins' question too.
I was just curious about the whole aerodynamics of the car. I find that subject interesting.

 

I think you need to understand what a spoiler does to answer this question.
A spoiler in most cases does not provide down force. The main purpose of a spoiler is to actually disrupt air flow over the back of the car. Without disruption the air actually circles back under the car and lifts it. The spoiler disrupts the flow, preventing the air from lifting the car up. So it doesnt push the car down, it prevents it from lifting off the ground. A good example of an effective but small spoiler is in NASCAR. Notice that it is just a flat piece of sheet metal.

Angle of attack is something relative to airplane wings, which is not what the function of the spoiler on our cars. On an indy car yes, but not on the EVO.

Basically what I think the engineers probably did is watch the flow of air in a wind tunnel, and stuck the spoiler right in it. We have such a high roof, that maybe it needed to be taller.

 

Cool. Thanks for the info.

But now I'm curious about why the VII is adjustable.

 

Knowing the angle of attack is not enough to tell you how much downforce is generated. Most wings create downforce with 0 angle of attack. And the Evo wing is a wing, not a spoiler.