UFC 4-159-03
3 October 2005
Table 4-5. Normalized Wind Yaw Moment Variables
SHIP TYPE
Zero
Negative
Positive
NOTES
Moment
Peak (a1)
Peak (a2)
Angle (θz)
Liner
80
0.075
0.14
Carrier
90
0.068
0.072
Tanker
95
0.077
0.07
Center island w/
cluttered deck
Tanker
100
0.085
0.04
Center island w/ trim
deck
Cruiser
90
0.064
0.05
Destroyer
68
0.02
0.12
Others:
130
0.13
0.025
stern superstructure
102
0.096
0.029
aft midships
superstructure
90
0.1
0.1
midships
superstructure
75
0.03
0.05
forward midships
superstructure
105
0.18
0.12
bow superstructure
A plot of the yaw normalized moment coefficient for the example shown in
Figure 4-5 is given as Figure 4-7.
80
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