![]() ![]() Maximum lift factor obtainable by the main sail Leverage factor for forces acting on sails of a sailboat.įactor of water drag induced by skid or slip of body. Leverage factor for inertial forces acting on the boat. Reference area for submerged part drag in square meters. The submerged depth (draft) of the boat in ft. These are the allowable keywords and their meanings, most of these parameters are optional, omitting them will make the program used default values. The numeric data is translated using the string keyword attached to it, and may appear in any order in the file, if certain types of data are not required, they can be omitted from the boat.cfg file. The boat.cfg file is composed of variable number of lines composed of two elements: This is a configuration files for animated pilots or parts in the boat. This is an optional customized panel file. ![]() This is the smoke sources definition file. This is the deck transparency layout file. These are the custom sounds used by the boat. These are the textures used by the boat parts. This file is used to describe the boat parameters. Inside the boat directory are the following files: The boats directory inside the Virtual Sailor directory containes the available boats, each boat is placed in a seperate directory inside the Virtual Sailor\boats directory. Herewith some comments on your useful experiments concerning anchor holding power in soft mud as described in Anchors for Muck, for Under 200 Bucks, February 2006.Adding new boats to Virtual Sailor is simple, all files were created using standard file types to allow use of simple text and image editing tools to create or modify them. Holding power can generally be increased by deploying a heavier anchor. Heavy anchors are, however, otherwise undesirable. They make manual recovery more difficult and, when stowed near the stem, both increase displacement and reduce pitch frequency. So there is an obvious trade between anchor weight and holding power. This suggests that some metric like the ratio of holding power to weight provides a better rating than simple holding power. ![]() Using this ratio, the Fortress FX-11 is the clear winner at 61, the runner up is the less expensive Danforth Standard at 28, and your starred Lewmar Claw is relatively poor at 19. The poor performance of the CQR-type anchors brings to mind the comment of the cruising sailor quoted in L. Francis Herreshoffs wonderful book The Compleat Cruiser. I can only paraphrase the old salt: The human race took millennia to develop a plow design that could be pulled easily through the earth, and some damned fool made an anchor of it. The damned fool was, of course, the renowned British mathematician, G.I. Our selection is based on the manufacturers recommendations for a specific boat and conditions. Weve previously included the ratio you describe, and found these to be only marginally useful. ![]()
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