Prop slip is a measure of how efficiently the boat is going through the water. Try some of the online forums that occasionally discuss prop sizing, such as the BoatUS forums.You might also try a book from Mercury Marine referenced by Stingray Boats as "Mercury Marine has a propeller guide with props for almost every boat.
#BOAT INBOARD PROPELLER CALCULATOR PROFESSIONAL#
Visit with knowledgeable propeller marketing specialists / or a professional at a local prop shop.Visit with owners of boats similar to yours that use them for similar activities.We (Polson Enterprises) do not provide assistance in sizing propellers.
#BOAT INBOARD PROPELLER CALCULATOR FREE#
Those wanting to actually size a propeller for a boat (determine the best diameter and pitch) may find a free downloadable Propeller Calculator program from Castle Marine in the U.K. Surfbaud Freeware Propeller Calculator is an Excel spreadsheet program They recognize our calculator as the inspiration for theirs near the bottom of the page. Obviously we are partial to ours, it is the only one that can calculate any of the 5 variables without having to set a selector switch of some type.īoat Performance Analyzer from All of us are a little different and one or the other might fit your specific needs best.
Mercury Marine Propeller Book Mercury has an online Everything You Ever Need To Know About Propellers book that does a nice job covering propellers in general. Visit our Outboard Propeller Manufacturers and Propeller Industry Market Research Page for a list of Propeller Manufacturers and information on the boat propeller market. It is now available in paperback for less than half what it used to cost in hardback! It can teach you what all those odd propeller terms mean and even have you calculating prop slip in a jiffy. Plenty of technical details, but still easy to understand. Billed as "the complete guide to choosing, understanding and installing boat propellers." International Marine/Ragged Mountain Pressĭimensions (in inches): 10.9 x 8.6 x 0.5 inches Propeller Handbook : The Complete Reference for Choosing, Installing,Īnd Understanding Boat Propellers by David Gerr If some of you want nautical miles/hr, knots, or Kilometers per hour, let us know and we will try to set it up. Obtain speed data from a radar gun if possible, boat speedometers are notoriously wrong. Prop slip may be entered as either decimal or integer values (.15 or 15). Prop Pitch = inches/rev (add 1 inch for cupped props) When entering data, you can either click on the appropriate cell, or you can "tab" between the cells. You may need to enable it (allow it to run) in some browsers. Almost all versions of Internet Explorer and Netscape have this capability. You must have a browser capable of running JAVA to use this calculator.
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