Page 619 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

22.1 Standard operating procedures 619
(Continued)
Vehicle Size Task SML
d. Inspect thrusters
e. Inspect through-hull fittings
f. Inspect bulkhead/pilings
g. Run anchor chain
h. Acoustically/visually search bottom under vessel
From vessel swimming to other vessel (100 ft offset)
P P P P P P P P P NA NA NA P P P
Note: Positioning the operations platform from one vessel while inspecting another is possible. The larger the offset, the more limited is the submersible’s ability to perform its inspection task. If this scenario is presented, consider moving the tether handling function to either an RB or to the vessel to be inspected.
a. Run bilge keel or keel
b. Inspect running gear to stuffing block
c. Inspect sea chest(s)
d. Inspect thrusters
e. Inspect through-hull fittings
f. Inspect bulkhead/pilings
g. Run anchor chain
h. Acoustically/visually search bottom under vessel
X D P X D P X D P X D P X D P X D P X D D X D D
Visual and Acoustic Hull Inspections from Vessel and Shore
Deployed from vessel with shore-based handling of tether
Note: This is a convenient and effective method of performing an inspection on the shore side of a moored vessel.
a. Run bilge keel or keel
b. Inspect running gear to stuffing block
c. Inspect sea chest(s)
d. Inspect thrusters
e. Inspect through-hull fittings
f. Inspect bulkhead/pilings
g. Run anchor chain
h. Acoustically/visually search bottom under vessel
Deployed from shore with tether handled from vessel
X D P P P P P P P P P P P P P P P P NA NA NA P P P
Note: This method is effective for inspecting the seaward side of a moored vessel while operating from shore. Consider this method if access to the vessel to be inspected can be gained.
a. Run bilge keel or keel
b. Inspect running gear to stuffing block
c. Inspect sea chest(s)
d. Inspect thrusters
X D P P P P P P P P P P
(Continued )