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Prop size gurus, I need some help, 3 blade to 4 blade
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<blockquote data-quote="Rat" data-source="post: 349959" data-attributes="member: 1914"><p>She sits low in the stern so I am looking to get some stern lift and she handles like a wet noodle (slides REALLY bad in corners at speed). The 4 blade prop will take care of both problems; I just want the RPMs to be the same or a bit higher. </p><p></p><p>She is 17'-9" OAL, 80" beam and 58" chine to chine at the transom; flat bottom. I have no idea on weight, but she is built heavy. She gets on plane fast, maybe 3-4 seconds with considerable (but not crazy) bow rise. </p><p></p><p>I will be using a local prop shop for the testing; I haven't found one yet but we have several around. I'm sure I will be limited to the brand they carry. </p><p></p><p>Here is a shot on the trailer:</p><p><img src="https://lh4.googleusercontent.com/-SlFUTkRGG2w/UQB9DDZ3g_I/AAAAAAAADWs/mIfnHKdR6x8/s640/IMG_1059.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>And here she is in the water:</p><p><img src="https://lh3.googleusercontent.com/-qidMKFwIdAw/UVxen4Sj6_I/AAAAAAAAD_8/z4ndrmCvl8s/s640/20130203_101552.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Rat, post: 349959, member: 1914"] She sits low in the stern so I am looking to get some stern lift and she handles like a wet noodle (slides REALLY bad in corners at speed). The 4 blade prop will take care of both problems; I just want the RPMs to be the same or a bit higher. She is 17'-9" OAL, 80" beam and 58" chine to chine at the transom; flat bottom. I have no idea on weight, but she is built heavy. She gets on plane fast, maybe 3-4 seconds with considerable (but not crazy) bow rise. I will be using a local prop shop for the testing; I haven't found one yet but we have several around. I'm sure I will be limited to the brand they carry. Here is a shot on the trailer: [img]https://lh4.googleusercontent.com/-SlFUTkRGG2w/UQB9DDZ3g_I/AAAAAAAADWs/mIfnHKdR6x8/s640/IMG_1059.JPG[/img] And here she is in the water: [img]https://lh3.googleusercontent.com/-qidMKFwIdAw/UVxen4Sj6_I/AAAAAAAAD_8/z4ndrmCvl8s/s640/20130203_101552.jpg[/img] [/QUOTE]
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Prop size gurus, I need some help, 3 blade to 4 blade
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