XCS Excess15 User Manual page 12

10
CATEGORIES
Force 9
Category A
Force 8
Category B
Force 6
Category C
Force 4
Category D
The maximum height of waves is measured from trough to crest; The European regulations use the concept of significant height
of waves (H 1/3).
The wind force (Beaufort scale) is the average actual wind speed over a period of 10 minutes at 10 metres above the sea.
DESIGN caTEGoRIES
MAXIMUM WIND
Established 47 knots Gusts approximately 61 knots
Established 40 knots Gusts approximately 52 knots
Established 27 knots Gusts approximately 35 knots
Established 16 knots Gusts approximately 23 knots
MAXIMUM WAVES
10 metres
8 metres
4 metres
0.5 metres