[Land-speed] Aero Surfaces...

[Dale H Pulju]

How about a front or rear wing linked to traction control by computer so it 
would increase traction when traction control called for it
dale
ssuunnyy and 100+ in pahrump


Subject: Re: [Land-speed] Aero Surfaces...


> Recent experiences;
>
>  At WoS a couple of years ago, Kelly & Hall lakester, 310 MPH, had a rear 
> stablizer with a wing mounted on top. The wing had flaps that were 
> controlled by the driver via electric motor. I guess the deal would be to 
> start the run with max downforce then trim out the flaps down track , or 
> vice versa. I do know that the motor burned up, may have been the airflow 
> over the wing forcing the flaps down and killing the circuit.
>
>  More recently, July 2006, the Honda F1 car had a stablizer with moveable 
> rudder. This was a direct link to the steering but it could be adjusted 
> down to decrease the angle of displacement. They finally ended up locking 
> the rudder into place at 0 deg. of displacement.
>
>  These examples are only the beginning of something that may be useful in 
> LSR. Maybe not so useful?
>
>  DW
>
> Ed Weldon <23.weldon at comcast.net> wrote:
>  The rule book allows this in modified roadsters subject to adherance to 
> body
> shape requirements. Probably similar in other classes I'm less familiar
> with like competition coupes. You'll see variations on this theme in
> several of the modified roadsters that are currently active. Seems to help
> there. IMHO better approach than a drag adding wing to get down force. I'm
> not so sure it would help in special construction classes where any rear
> body contour is allowed.
> With respect to spin control there may be some merit to the driver being
> able to actively add downforce with a controlled change in aerodynamics 
> like
> when he/she feels the car getting a little loose at speed. I think most of
> us seem to agree, however, that once a spin starts events happen too fast
> for a driver intervene in any useful way.
> This is a tricky area to get into and would have to be watched pretty
> closely until we all learned more about it. Interesting to explore for
> those whose resources are deep enough to include access to wind tunnel
> testing.
> Ed Weldon
> Subject: Re: [Land-speed] Aero Surfaces...
>
>
>> Instead of wings and flaps why not shape the belly pan or underside of 
>> the
>> car to form a venturi and add downforce that way ?
>> Lance