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Coast Guard25' Coxsn
Stability
Question | Answer |
---|---|
Stability is defined as | The ability of a vessel to return to an upright position after being heeled over |
What are the two types of stability | Longitudional (fwd to aft) and Traverse (side to side) |
What is Gravity | Gravity is the force that pushes the vessel down into the water |
What is bouyancy | Thr force that pushes up from the water to keep the vessel afloat |
What is heeling when it comes to stability on a boat | A temporary leaning |
The two forces that affect stability are | Static and Dynamic |
Static forces are caused by | placement of weight within a hull |
Dynamic forces are caused by | actions outside the hull such as wind and waves |
How do you check the stability when you pull on scene | Watch the time required for a complete roll from side to side. The time should remain about the same |
What are features that affect stability | Size and shape of the hull, draft of the boat, Freeboard, Displacement, Superstructure size and weight, Non -watertight openings |
What is Listing when it comes to stability on a boat | A permenant leaning. |