Asd tug manoeuvring manual
Illustration 1
Station keeping
Thrusters in neutral position, both engines running at the same power.
Illustration 2
Sailing slow ahead
Illustration 3
Sailing full ahead
Illustration 4
Sailing slow astern
Illustration 5
Sailing full astern
Illustration 6
Turning to Port
Illustration 7
Turning to starboard
Illustration 8
Turning to Port stern first
Illustration 9
Turning to starboard stern first
Illustration 10
Normal stopping
Move the thrusters to neutral position.
Illustration 11
Emergency crash stop
Turn the thrusters 180°, always point the wash outwards!
Illustration 12
Turning on the spot to port
To prevent cavitation, avoid wash from one thruster entering the other thruster.
Illustration 13
Turning on the spot to starboard
To prevent cavitation, avoid wash from one thruster entering the other thruster.
Illustration 14
Station keeping minimum wash
Thrusters in neutral position, wash pointing inwards! Both engines running at low power.
Illustration 15
Sailing slow ahead minimum wash
Low power only!
Illustration 16
Sailing slow ahead turning to port minimum wash
Increase power on the starboard thruster.
Illustration 17
Sailing slow astern turning to starboard minimum wash
Increase power on the starboard thruster.
Illustration 18
Slow sidestepping to starboard
Often used for coming alongside a quay or a vessel.
Illustration 19
Slow sidestepping to port
Often used for coming alongside a quay or a vessel.
Illustration 20
Fast sidestepping to starboard
A little more on the port thruster than on the starboard thruster.
Illustration 21
Fast sidestepping to port
A little more power on the starboard thruster than on the port thruster.
Illustration 22
Normal style
Commonly used by ASD tugs.
Illustration 23
Normal style
Commonly used by Asd tugs.
Illustration 24
Conventional style
Not common anymore for Asd Tugs, but possible.
Illustration 25
Normal style
Commonly used by Asd Tugs.
Illustration 26
Pushing
Illustration 27
Pulling
Illustration 28
Pushing under an overhanging bow or stern
When the vessel’s speed is more than 3 knots, go to the flat area of the vessel’s side and move from there under the overhanging bow (or stern), keeping constant contact.
This is the safest method!
Illustration 29
Traversing stand by position
Illustration 30
Pushing a vessel having a low speed
Vessel sailing at a speed less than 4 to 5 knots.
Illustration 31
Pushing a vessel having a higher speed
Vessel sailing at a speed more than 4 to 5 knots.
Illustration 32
High speed stand by
Illustration 33
Braking and slowly turning the vessel to starboard
Illustration 34
Turning the vessel to starboard
Illustration 35
Braking and keeping a vessel on course
Illustration 36
Braking a vessel by pulling at the stern
Illustration 37
Braking a vessel by pushing against bow
Only possible at lower speeds on vessels without bulbous bow.
Illustration 38
Pushing a vessel into a confined space
Illustration 39
Pulling a Vessel astern and keeping her on course
Illustration 40
Side pushing in narrow areas
Illustration 41
Pushing using the wash of the thrusters
Used for handling vulnerable vessels, submarines, low freeboard vessels, etc.
Only applicable at speeds up to 2 knots.
Illustration 42
Turning the vessel almost on the spot
Wash of the port thruster pushes again the vessel’s stern.
Illustration 43
Pushing the vessel sideways
Pushing the bow of the vessel with the bow of the tug and pushing the stern of the vessel with the wash of the port thruster.
Illustration 44
Sailing ahead with a dead vessel or barge
Illustration 45
Sidestepping with a dead vessel or barge
Artikel lanjutan : Olah gerak Asd Tug 2
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