"Aniculapeter" ) writes:

thanks for the additional info.
I can get the value for GM now.

l is one ?

mulitplying by unity doesn't make sense.
it does not change anything.


57.3 x SA x h x l
-----------------
D x GM

I know SA = sail area (sq ft)
D = displacement (pounds)

I don't know what h, l, and GM are.
Anybody know?

I think "h" is the height of the centre of effort of the sail. a note says
"from designed sail plan center to LWL plus 40% draft" it doesn't say if
the centerboard is up or down. I think it would be in feet.

"l" is "lpsf" in one location. I think that might be "lateral plane in sq
ft"
but not sure. Waterline plane?

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