Quantcast Upgraded Moorings

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Those temporarily installed in an Amphibious Objective Area (AOA)
for utilization by amphibious support ships.
Typhoon, hurricane, storm moorings.
Those installed in exposed areas that are subject to considerable
current, tide, wind, and wave actions.
Those installed in geographical areas where abnormal bottom
conditions require propellant embedment anchors (PEAs).
Those designed to provide restricted watch circles.
Those designed for use by submarines and containing a riser
fendering system which precludes damage to the submarine's sonar
dome when moored to the buoy.
1.2.3 UPGRADED MOORINGS. All existing fleet moorings will be replaced with
upgraded mooring material. It is intended that these moorings will remain installed
for extended periods of time without overhaul vice the current 3- to 5-year time
period between overhauls. The upgraded moorings will include urethane coated
foam buoys, improved FM 3 chain and associated components, cathodic protection,
and a more efficient anchor assembly.
1.2.4 MOORING CLASSIFICATIONS. NAVFAC DM 26.6, "Mooring Design Physical
and Empirical Data, " identifies the different classes of fleet moorings. A fleet
mooring is classified according to its holding capacity. Table 1-1 lists the classes of
N a v y fleet moorings and the required size of the riser and anchor chain
subassemblies. These standard classes have been designed to support the various
types and sizes of operational fleet vessels. The larger classes (AA through CC) are
configured with paired anchor legs attached to spider plates, and can have six to
eight anchor chain subassemblies (see Figure 1-6).


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