One reason why I prefer knots to Beaufort scale is the broad range covered by F4. At 11 knots I might be hardly planning with 7.8 mē - my biggest sail - while in consistent 15 knots plus gusts I may be happy with 6 mē and a small board. It is not the case in F5 or F6 where a single sail/board combo is more likely to cover the whole range. Of course I will pick one size that suits the average wind of the day, but F4 means virtually nothing although it is the sweetspot of many sailors.
Last edited by Farlo; 19th July 2011 at 06:42 PM.