| Term 
 | Definition 
 
        | The ability of a vessel to return to an upright position after being heeled over. |  | 
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        | Term 
 | Definition 
 
        | The upwards force of water displaced by the hull. |  | 
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        | Term 
 | Definition 
 
        | Is the force causing a vessel to react against the roll and return to an even keel. |  | 
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        | Term 
 | Definition 
 
        | The direction of forces (winds, currents and sea conditions.) |  | 
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        | Term 
 | Definition 
 
        | Is defined as the strength of set expressed in knots. |  | 
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        | Term 
 | Definition 
 
        | The horizontal motion of water away from land. |  | 
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        | Term 
 | Definition 
 
        | the horizontal motion of water toward land. |  | 
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        | Term 
 | Definition 
 
        | a vessel lacks manvuerablilty unless there is suffinefent amounts of water running through the rudders. |  | 
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        | Term 
 | Definition 
 
        | usually occurs when the propeller rotates at a very high rate of speed and a partial vacuum forms air bubbles at the tips of the prop blades. |  | 
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        | Term 
 
        | Two Primary Forces that effect stability |  | Definition 
 
        | Gravity and buoyancy are the two primary forces that affect stability .  Gravity pushes the vessel down into the water. While buoyancy is force that pushes up from the water keeping the vessel afloat. |  | 
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        | Term 
 | Definition 
 
        | are caused by placement of weight within the hull of the vessel.  Adding weight on one side or the other of the boats centerline or above its center of gravity usually reduces its stability. |  | 
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        | Term 
 | Definition 
 
        | external forces that affect stability.  example wind waves, current. |  | 
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