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21st Aug 2006, 16:19

#5 (permalink)

captainpaddy

Join Date: Jun 2002

Location: UK

Posts: 160

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I always used the sixths (6th's) rule!

10 deg off = 1/6 of total wind speed
20 deg " = 2/6 " " " "
30 deg " = 3/6 " " " "
40 deg " = 4/6 " " " "
50 deg " = 5/6 " " " "
60 deg or more = 6/6 " " " "

Easy peasy. Very similar to BEagles one actually...!