Page 615 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

22.1 Standard operating procedures 615
Vehicle Size Task SML
Pier/Mooring/Anchor/Hull Search from RB
Tied off to structure
Note: When inspecting a moored vessel (time and logistics permitting), it is best to tie off to the structure to which the vessel is moored so that the RB is stable for deployment and out of the path of other port traffic. It is best to approach a vessel from the bow for the main hull inspection and reposition to the stern for running gear inspection. This will avoid the potential tether entanglement in the running gear as the tether drags past while inspecting forward sections of the hull.
a. Run bilge keel or keel
b. Inspect running gear to stuffing block
c. Inspect sea chest(s)
d. Inspect secondary thrusters (bow and laterals)
e. Inspect through-hull fittings
f. Inspect bulkhead/pilings
g. Run anchor chain
h. Acoustically/visually search bottom under vessel
Station-keeping
X D P P P P P P P P P P P P P P P P D P P P P P
Note: It is possible to inspect a vessel at anchor with the ROV system operated from the RB while station-keeping. As discussed above, the larger systems are capable of some time-saving maneuvers running the submersible while following with the RB. These are very efficient maneuvers, but should be conducted with caution. The approach for smaller systems is to break the vessel inspection into segments, then run inspection lines with the minimum wetted tether following the guidelines established in the reference drag tables above. When inspecting anchors, begin on the surface and inspect down the chain toward the anchor.
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