Gene:

1: A glider's best glide ratio is unaffected by its weight.
2: However, a heavier glider flies and sinks faster at
the same glide angle than a lighter one.
3: When lift conditions are strong, the pilot accepts the
higher sink rates to achieve higher speeds over the ground.



Pete

Gene Whitt wrote:
Y'all,
Been many years on rec.aviation.student but even more years since
gliding. Unable to explain the 'why' of water ballast to increase
performance in gliders to argumentative airplane student.

I need a simple explanation in 25 words or less.

Gene Whitt



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Peter D. Brown
http://home.gci.net/~pdb/
http://groups.yahoo.com/group/akmtnsoaring/