boats yachts powerboats for sale marbella spain luxury yacht cruises sealair yachts spain boats yachts powerboats sale marbella puerto banus
  Home Luxury Yacht Cruises Yachts for Sale in Spain Berths for Sale Contact

Useful Sailing Information

in Knots - -  
0-1 0 Calm 0
1-3
1
Light Air 1/4'
4-6 2 Light Breeze 1/2'
7-10 3 Gentle Breeze 2'
11-16 4 Moderate Breeze 4'
17-21 6 Fresh Breeze 6'
22-27 7 Strong Breeze 10'
28-33 8 Near Gale 14'
34-40 9 Gale 18'
41-47 10 Strong Gale 23'
48-55 11 Storm 29'
56-63 12 Violent Storm 37'
64-Above 13 Hurricane 49'
VHF Frequencies
Useful Knots