USING A HI START WITH A 3 M MOLDIE
 
When the flaps are down the airfoil is changed to a High Lift - High Drag  
airfoil.  On a strong winch the High Lift gives a good launch since the  winch 
can overcome the High Drag.  But on a hi start there is too much drag  to get 
to the High Lift part of the curve, so best launch is with the flaps up  to 
have a Low Lift - Low Drag condition.
 
Bob Harold (Coming to the NATS this year with new eyes)
 



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