The tornado is for sale, it must make hp -and- save gas. I mean why would someone sell something that doesn't actually perform?

 

[QUOTE=FormulaRedline,Nov 5 2007, 09:15 AM] Not necessarily.

 

The thread starter clearly stated he saw their CFD results at sema I figured i would take his word for it...

 

You are right, I missed that:

[QUOTE=blackey,Nov 3 2007, 04:32 PM]Not measured I'm sure, but CFD is better than nothing.

They had plots, etc.. oif the airfoil shapes.

 

Does anyone know of any data for the non-"3D" wings that APR offers? Just the GT series wings. How do they compare to the "3D" wings?

 

I asked all of these questions when I was wing shopping and this is what I got:

This data is for the GTC-200






The wing on the test car:




And this is the spreadsheet they sent me of their data:

http://spreadsheets.google.com/pub?key=pgC...5p4jgv6mRhEJyKA

 

mike what do the pretty colors mean?

 

Why don't people fair their mounts? That's a bunch of parasitic drag that is easily avoidable.

Notice that the drag doubles between alpha 0 and alpha 15, but the lift only goes up by less than 50%.

There's also a clear indication of separated flow behind the more aggressive tips of the wing in that velocity vector plot. I'm not at all convinced that the 3D shaping is helping this wing (except for sales).

 

What's that?

 

Yikes! Somebody call the CFD police!

That aesthetic change in the wing really works against the flow.

Fairings/spats are just covers to help smooth the flow over an object, essentially a miniature wing shape over the supports.