Dimensions
What does Waterline length (LWL) mean?
Waterline length is the length of the hull where it intersects the water in a stated loading condition.
Why it matters when choosing a sailboat
It helps describe the immersed hull and is one ingredient in displacement-hull performance estimates. It does not predict passage speed by itself. Sail area, hull shape, sea conditions, loading and sailing angle all affect progress.
A practical example
A traditional boat with long bow and stern overhangs can have a shorter waterline than a modern boat with a similar overall length.
A question to ask before buying
Is this the design waterline measurement, and how does the boat perform when loaded for cruising?
Related sailboat terms
Put the term to work.
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