Light Weight Taut Wire Mk 14B Operation Manual
17
The operation of the Taut Wire System is divided into three modes:
•
Setting in Operation - This procedure puts the system into the
operational mode, i.e. providing position-reference data.
•
Parking - This procedure puts the system back to the parked
position, i.e. boom and depressor weight inboard, with the boom in
its stowage position and the weight resting in its cradle.
•
Winding Wire - Whenever it is necessary to wind off or on wire
from the drum.
5.1
Setting in Operation
Note
This operation should be carried out with the vessel as stationary as
possible, particularly when placing the depressor weight on the seabed.
Four factors are vital to the correct function of the Taut Wire System,
particularly when operating in shallow water:
•
Seabed Condition.
Select whenever possible a sea bed condition that will give good
adherence to the weight - a hard surface may allow dragging.
•
Working Angle.
Angle between the depressor weight and the gimbal head. Keep wire
operating-angle from the vertical to a minimum - as the horizontal
forces acting upon the weight, and chances of dragging, increases
with the angle.
•
Wire Mooring Tension.
Verify that the correct mooring tension is maintained by checking
the mooring tension metre on the main control panel (option) or by
checking the air pressure in the tension compensating system.
•
Pitch and Roll of the vessel.
Avoid using the Taut Wire if the rate of the vessel's pitch and roll
exceeds the maximum speed and acceleration capability of the
mooring system.