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.
Example sentencesExamples
- And then Erik came by and said that it was better, but that the buttock lines should be straightened out.
- Therefore, a semi-displacement boat will have fairly straight and fairly flat buttock lines aft.
- The chine and buttock lines will reveal the full bellied shape usually present in this type of hull.
- The flat runout buttock lines provide planing speed capacity with minimal drag and maximum stern support.
- The basic idea is to mark off a grid on the ground under the boat for buttock line and frame stations.