John, I believe that coast-down will give you much more than a wind tunnel.
All you get in a tunnel is the aero component of drag. Coast-down gives you
all of the drag effects at once. So then any change that you make that has
multiple impacts on drag (body, gears, tires, trans, engine?) will be taken
into consideration. You just can't seperate them easily. But who cares????
Skip
At 05:58 PM 1/28/03 -0500, John Beckett wrote:
>Would relative testing show the same results (improvement or lack there of)
>weather in a wind tunnel or on the coast down?
>
>JB
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