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water ballast



 
 
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  #10  
Old July 14th 15, 07:35 PM posted to rec.aviation.soaring
Alexander Georgas[_2_]
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Posts: 33
Default water ballast


The only time head or tail-wind affects inter-thermal speed or the need for
ballast is when the glide is to a fixed point on the ground, either a turn
point to be rounded before the next thermal is taken or a final glide to
landing.


....or when thermals are linked to ground features, such as when flying
above mountains which create energy lines
 




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