Draught – Definition and Pronunciation
What is Draught?
Draught is the vertical distance from a vessel’s waterline (when ready for sailing) down to the bottom edge of the keel. It indicates how deep the hull sits in the water and is critical for safe navigation, berthing, and load planning.
Examples of Draught
The draught can only be reduced if the proportion of ballast is increased, because the righting lever becomes smaller. This would be more effective with a «bulb» at the bottom end of the keel.
From “Understanding Yacht Design – Key Features and Performance Ratios”.
The draught is defined as the vertical distance between the flotation line of a boat equipped ready for sailing and the lower edge of the keel. It contributes to the enlargement of the lateral plan, but hardly at all to the initial stability (stiffness).
From “Choosing the Right Yacht – Essential Considerations for Every Sailor”.
Section and waterline plans are of special importance when evaluating a yacht. They provide information about the yacht’s cross-section and there fore about stability, draught and breadth.
From “Comprehensive Guide to Sailboat Maintenance and Modifications”.
Pronunciation of Draught
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