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Generally, boat building books have a detailed description of the lofting process, beyond the scope of this article. Plans can be lofted on a level wooden floor, marking heavy paper such as Red Rosin for the full-sized plans or directly on plywood sheets. Two men lifting templates in the mold loft, Tyneside Shipyards, 1943
Spiling is a technique used in building wooden boats in which a smaller component is used as a pattern against which the outline of a larger component can be drawn. This is often used for creating planks on traditionally built boats that have complex shapes. [1] [2]
There are many hull types, and a builder should choose the most appropriate one for the boat's intended purpose. For example, a sea-going vessel needs a hull which is more stable and robust than a hull used in rivers and canals. Hull types include: Smooth curve hull: these are rounded and free of chines or corners.
A velocity prediction program (VPP) is a computer program which solves for the performance of a sailing yacht in various wind conditions by balancing hull and sail forces. VPPs are used by yacht designers, boat builders, model testers, sailors, sailmakers, also America's Cup teams, to predict the performance of a sailboat before it has been built or prior to major modifications.
Garboard strakes and related near-keel members Diagram of typical modern metal-hulled ship’s exterior plating, with a single strake highlighted in red. On a vessel's hull, a strake is a longitudinal course of planking or plating which runs from the boat's stempost (at the bows) to the sternpost or transom (at the rear).
Hogging is the stress a ship's hull or keel experiences that causes the center or the keel to bend upward. Sagging is the stress a ship's hull or keel is placed under when a wave is the same length as the ship and the ship is in the trough of two waves.
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FreeCAD's own main file format is FreeCAD Standard file format (.FCStd). [9] It is a standard zip file that holds files in a certain structure. [9] The Document.xml file has all geometric and parametric objects definitions. [9]