Last Updated
：2025/11/28
buttock line
（ plural ）
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(aviation, ship-building) A curve indicating the shape of an airfoil or nautical equivalent in a vertical plane parallel to the longitudinal axis of the craft or vessel.
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buttock line
The naval architect examined the buttock line to ensure the hull's longitudinal curvature met hydrodynamic specifications.
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The naval architect examined the buttock line to ensure the hull's longitudinal curvature met hydrodynamic specifications.
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