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jim, redefine any and all words you can to "prove" (to yourself and any
doubters out there) that your spending $2,200 for a prop to make your boat go 1/10th knot faster was one hell of a smart "investment". the word "feathering" can not be used in the context of a corkscrew prop such as an auto-prop. except by "investers" mentioned above. an auto-prop is an auto-prop. the blades twist a little under high power/low speed, twist a little differently under low power/low speed, and twist something differently under no power/any speed. the drag on the prop is still very high indeed (as a percentage) compared to a genuine feathering prop. auto-props are sold (by the manufacturer at least, if not always by the dealer) as a variable speed transmission. keep in mind that props don't drag all that much anyway. according to the MIT data, even a fixed 3 blade only pulled 170# on a boat at 5 knots, or about the equivelent of 2-1/2 hp. From: Jim Richardson Date: 9/3/2004 4:00 AM Eastern Daylight Time Message-id: On 03 Sep 2004 04:01:46 GMT, JAXAshby wrote: no, the chord does. which word don't you understand? The "chord does" What JAXAshby ? -- Jim Richardson http://www.eskimo.com/~warlock "Human beings can always be counted on to assert with vigor their God-given right to be stupid." -- Dean Koontz |
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