Ch. 16 Flashcards
Why is an anchor called a poor man’s tugboat?
Because when a vessel uses its anchors, it can dispense with the services of a tug. There are also occasions when the use of the anchors is preferred.
How does using an anchor differ from using a tug?
The anchor is essentially a passive device that cannot push nor pull like a tug unless it has been spotted beforehand and is used as a deadman to heave against, or is used as a brake to check a vessels way.
What are the three functions of an anchor when a ship is maneuvering?
Restrain but not stop the ship, fix or hold the anchored end of the ship, or provide a deadman to heave against.
How is the anchor used when tugs are also employed?
The anchor is used to provide directional stability when the ship is towed by the tug and to fix an end for the tug to turn the vessel.
How are stern anchors used?
Stern anchors may be used to keep ships from swinging with the tide, and are often used on passenger ships to hold up the stern of a vessel to provide a lee for the launches. When used with tugs they are often used in docking in fair tide situations.
What is the danger when heaving a stern anchor?
The possibility of the ship overriding the anchor and as a result doing damage to the rudder or propeller.
