tag:blogger.com,1999:blog-312016792008-05-26T18:04:54.354-07:00Daniel Webber © Copyright.http://www.blogger.com/profile/18069476147241430760noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-31201679.post-1153054770624704152006-07-16T05:54:00.000-07:002006-11-09T06:36:39.493-08:00<strong>Tube shape</strong> indicates the degree of upthrust, which is roughly proportional to the volume of water being thrown over with the lip. The <a title="Geometry" href="http://en.wikipedia.org/wiki/Geometry">geometry</a> of tube shape can be represented as a ratio between length and width, such that a perfectly cyllindrical <a title="Vortex" href="http://en.wikipedia.org/wiki/Vortex">vortex</a> has a length to width ratio of 1:1, while the classic almond shaped tube is nearer 3:1. When 'width' exceeds 'length', the tube is typically described as "square".<br /><br /><br /><p><img height="172" src="http://www.the-door.info/wave-shape-almond-400px.jpg" width="400" /></p>Tube shape defined by length to width ratio:<br /><br /><ul><li>Square: <1:1</li><li>Round: 1-2:1</li><li>Almond: >2:1</li></ul><p><strong>The angle of the peel line</strong> reflects the speed of the tube. A fast, "down the line" tube has a peel line with a smaller angle than a slower, "bowly" tube.</p><p>Tube speed defined by angle of peel line:</p><ul><li>Fast: 30°</li><li>Medium: 45°</li><li>Slow: 60°</li></ul><p><a href="http://en.wikipedia.org/wiki/Surfing#Wave_intensity_classification"><img style="WIDTH: 400px; HEIGHT: 104px" src="http://www.the-door.info/wave-intensity-table.jpg" /></a></p>Daniel Webber © Copyright.http://www.blogger.com/profile/18069476147241430760noreply@blogger.com