BRIG Eagle 8 - Page 6

2022 Owner’s Manual Eagle 8 BRIG ltd
6
Design Category D: This craft is designed to operate in winds up to Beaufort force 4 and the associated wave heights
(occasional maximum waves of 0,5 m height). Such conditions may be encountered in sheltered inland waters, and in
coastal waters in fine weather.
NOTE : The significant wave height is the mean height of the highest one-third of the waves, which approximately
corresponds to the wave height estimated by an experienced observer. Some waves will be double this height.
BEAUFORT Wind Scale and Corresponding State of the Sea
Beaufort
Number
Denomination
Wind speed in
Knots
Wind speed in
m/sec
State of the sea
Significant wave
height in meters
0 Calm <1 0-0.2 Calm 0
1 Light Air 1-3 0.3-1.5 Calm 0
2 Light Breeze 4-6 1.6-3.3 Almost calm 0.2
3 Gentle Breeze 7-10 3.4-5.4 Almost calm 0.2
4 Moderate Breeze 11-16 5.5-7.9 Small waves 0.5
5 Strong Breeze 17-21 8.0-10.7 Large waves 1.25
6 Fresh Wind 22-27 10.8-13.8 Large waves 2.0
7 Strong Wind 28-33 13.9-17.1 Very large waves 2.5
8 Gale 34-40 17.2-20.7 Rough sea 4
9 Strong Gale 41-47 20.8-24.4 Very rough sea 6
10 Storm 48-55 24.5-28.4 Heavy 9
11 Violent Storm 56-63 28.5-32.6 Very heavy 14
12 Hurricane 64 and over 32 and over Stormy 14 and over