It has already been done Alistair. I have a photo, or set of photo's
archived
somewhere on my computer or "The Book" I run (WD external HD).
Precisely the same concept, just a little smaller, but it sure did hang
over the rear.

By the way, who amongst us can go fast enuf to significantly benefit
from this needed appendage? ;-)

bob

On Mon, Nov 9, 2009 at 6:43 PM, Alistair Bell <albell@shaw.ca> wrote:

>
> Little wings up top, bustles, side wings etc have all been talked
> about to reduce the neg press area and thus reduce overall drag. I
> think someone even suggested the idea that I just saw applied to semi
> trailers, see here;
>
> http://www.sciencedaily.com/releases/2009/11/091105121037.htm
>
>