Re: Do winglets produce thrust?

"K.P. Termaat" <[EMAIL PROTECTED]> wrote:

> Two vectors (weight and aerodynamic force) cancel each other
>out so according to the first law of Newton
>the glider maintains its direction and speed. But it is not obvious from
>this model which force is pulling the glider forward. 

But they have the advantage of being real forces, while lift
and drag are simply arbitrary, but convenient, components of
the real forces :-)
Todd Pattist - "WH" Ventus C
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