Try a little weather vane on the side of the fuselage.  measure its 
rotation.  this will tell you the angle of the wing compared to the 
angle of  air flow. this will warn of a stall.
 <OR>
use a small tab on the leading edge of the wing.  when you approach a 
stall condition the disrupted airflow moves it  to warn of approaching stall
Cessna used this on a lot of their planes.

Bob

Zik Saleeba wrote:

>One thing I haven't catered for yet is air speed. I'd like it to be
>smart enough to stay out of trouble yet having no concept of wind
>speed it could easily get into a stall without knowing until it was
>too late.
>
>I was wondering if anyone had any ideas for either stall indicators or
>wind speed / direction indicators which would be suitable for a plane
>of this size? That means small and light - it has to be able to be
>carried by the plane along with the rest of the gear I'm putting in
>there.
>  
>
<SNIP>

>Does anyone have any better ideas?
>
>Cheers,
>Zik
>
>  
>
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