UFC 4-159-03
3 October 2005
8-5
MOORING LPD-17, LHD-1 AND LHA-1. As funding and time permit we
are preparing general guidelines and recommendations for mooring and/or anchoring
various classes of U.S. Navy ships. Work to date includes:
Reference
Title
NFESC TR-6020-OCN
Mooring USS WASP (LHD 1) Class Ships
NFESC TR-6028-OCN
Mooring USS TARAWA (LHA 1) Class Ships
NFESC TR-6045-OCN
LPD-17 USS SAN ANTONIO Class Berthing, Mooring and
Anchoring
Detailed information on mooring these three classes of ships is provided in the reports
listed above.
8-5.1
Mooring LPD-17. Examples of mooring LPD-17 (Figure 8-17 and Table
8-8) are illustrated in this section.
Figure 8-18 is a summary of the estimated safe mooring limits for LPD-17
based on the EMOOR planning tool for the ship moored with 28 parts of ship's lines.
Figure 8-18 (upper) is for a water depth of 45 feet (i.e. T/d = 0.5) and Figure 8-18
(lower) is for a water depth of 25.2 feet (i.e. T/d = 0.9). The diagonal lines on the graph
correspond to various broadside current speeds, Vc. The dashed horizontal lines are
for the cases of 50-knot and 64-knot winds. The X-axis on each diagram is the mean
vertical angle of the breasting lines. The Y-axis is the estimated maximum safe wind
speed.
For example, take the case of the ship moored at a berth with a water
depth of 25 feet and a broadside current of 1.5 knots. For a mean vertical breasting line
angle of 30 degrees, the maximum estimated safe wind speed from Figure 8-18 (lower)
is 53 knots.
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