Each of a series of longitudinal lines or curves marked on a plan of a ship to show its fore-and-aft sections at various distances from the centre line.
More example sentences
- The chine and buttock lines will reveal the full bellied shape usually present in this type of hull.
- The basic idea is to mark off a grid on the ground under the boat for buttock line and frame stations.
- The flat runout buttock lines provide planing speed capacity with minimal drag and maximum stern support.