Ship Handling and Manuevering Flashcards
What is the object of turning short round?
To turn the ship within the ship’s own length.
What is snubbing round?
A maneuver to turn the vessel in limited sea room using one anchor on a short stay that will hold the bow while the stern swings around on the tide.
What is an appropriate approach angle for docking port side too with right-hand turning screw?
25 degrees-back engines when close to spot and transverse thrust will bring the vessel parallel to the berth while stopping the headway.
What is an appropriate approach angle for docking stbd side to with right-hand turning screw?
15 degrees-stop the engine short of spot-use port rudder to swing the stern-back the engine to stop the swing of the stern and stop headway once spot has been reached.
What is the appropriate approach angle for docking port side to with strong onshore winds with a large amount of windage of the vessel aft?
Approach the berth at about 60 degree angle-stop the vessel with the bow across from the mid-ship final spot-drop the offshore anchor-dredge the anchor towards the berth using the engine and port rudder to control the swing of the stern towards the dock. Once A/S back the anchor chain off so it is in the up and down position not blocking the waterway.
What would be the sequence of handling lines and helm commands to bring a vessel off a dock port side too with minimal wind and a head current?
Single up lines to a head line and an aft spring-slack the head line while keeping the aft spring tight-the vessel should pivot off the spring line bringing the bow off the berth-a wedge should form between the vessel and the berth bringing the stern slightly away from the berth-come ahead dead slow bringing in the bow line-go all stop-bring in the after spring-come ahead on the engine with appropriate rudder to clear the berth into the current.
