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#1
September 9th 03, 04:57 PM
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"Rasman" s comments read:
I was of the understanding that as wing loading increases, best L/D is not only at a faster speed, but is better then max L/D on an un-balasted glider. For instance, if you have a glider which has its best glide ratio at 20km/h (nice and slow) and is aprox 20/1 (nice and crap) - if you add 20kg ballast, its best glide ratio is acheived at 30km/h and is 30/1 Correct me if I am wrong, it is more then possible. Errr scratches head - normally the described effect of ballasting is 1) Best L/D stays the same but 2) At a higher airspeed and 3) At a higher sink rate Although we are talking about Best L/D ~ 42:1 at 55knots at 400kgs and Best L/D ~ 42:1 at 60knots at 450kgs As conservative estimates for my ASW20 -- Tim - ASW20CL "20" 
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