half-breadth plan
[haf-bredth, -bretth, -breth, hahf-]
noun Naval Architecture.
a diagrammatic plan of one half of the hull of a vessel divided lengthwise amidships, showing water lines, stations, diagonals, and bow and buttock lines.
Compare body plan, sheer plan.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019