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 The first anchor is slung by a bridle in a horizontal position and has
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attached to it a crown marker buoy and one anchor leg
subassembly. The anchor is fitted with a pelican hook or a toggle
bar quick release system as shown in Figure 2-6. The crane lowers
the anchor and chain simultaneously over the side. When installing
moorings equipped with chain stud anodes (see Section 8.3.1.1),
care must be exercised that the chain does not drag over sharp
edges which can result in some of the anodes being stripped off.
Upon reaching the bottom, release the anchor and recover the
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bridle. Move the barge toward the center marker buoy while
slowly lowering the chain with a flat catenary.
Upon approaching the center marker buoy, pull the subassembly
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taut so that the anchor is properly set. Then, lower the bitter end of
the chain (with a pickup buoy attached to it) to the bottom.
The crane barge now proceeds to the second marker buoy and
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lowers the anchor (of Part II) 25 feet from the marker toward the
center marker buoy.
The anchor is fitted with a quick release
mechanism and has a crown buoy attached to it.
Upon reaching the bottom, release the anchor and recover the
q
bridle. Move the barge toward the center marker buoy while
slowly lowering the chain with a flat catenary. Upon approaching
the center marker buoy, pull the subassembly taut so that the
anchor is properly set. Then, using the pickup buoy, retrieve the
end of the first anchor chain subassembly and attach it to the
g r o u n d ring. Attach the bitter end of the third anchor chain
subassembly (Part Ill) to the ground ring also. Then lower the
25
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