UFC 4-159-03
3 October 2005
Table 8-3. DD 963 Criteria (1/3 Stores)
PARAMETER
DESIGN BASIS
DESIGN BASIS
(SI units)
(English units)
Length Overall
171.9 m
564 ft
At Waterline
161.2 m
529 ft
Beam @ Waterline
16.8 m
55 ft
Average Draft
6.5 m
21.2 ft
Draft at Sonar Dome
8.8 m
29 ft
Displacement
9.07E6 kg
8928 long tons
Chock Height From Baseline
10.7m stern
35 ft
15.9m bow
52 ft
8-4.4
Forces/Moments. Methods in Chapter 4, as well as data in NFESC
Report TR-6003-OCN, are used to compute the forces and moments on the ships.
These values are summarized in Figure 8-13. Wind angles are based on the local
coordinate system for a ship shown in Figure 4-2.
Note that wind tunnel model tests show that there is significant sheltering
in the transverse direction of downwind ships in this nest of identical ships, as shown in
NFESC Report TR-6003-OCN. However, there is little wind sheltering in the
longitudinal direction. Table 8-4 summarizes the environmental force calculations used
for this example.
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