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Looking for prop explanation, not just answer
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<blockquote data-quote="shooter5635" data-source="post: 424245" data-attributes="member: 21771"><p>Alright. I picked up a 2017 Alumacraft MV1648 NCS and I LOVE it. It's incredible the difference in this boat vs my previous flat bottom. </p><p></p><p>Anyway, I threw my 1989 2 stroke evinrude 15hp tiller on the boat. 2 guys plus hunt load trimmed out correctly and I'm traveling 18.9 mph at 6200 rpms. I have a Solas 9.25 x 10 prop on the motor now. Prop slip calculated out to be 22. I heard that you want prop slip around mid teens for your average boat. I read up on prop slip, and understand what it is but I read on this forum that lowering prop slip will not help performance which just doesn't really make sense to me. Can someone offer an explanation? </p><p></p><p>I'm also looking at getting a new prop if it'll help the motor. I found an evinrude spec chart (https://www.rubexprops.com/boat-propellers/rpm-range/?make=Evinrude) and I'm 800 rpms under max rev (7000 per the chart). I used the prop calculator in the sticky and it suggested I go with a 9 x 9. </p><p></p><p>Thoughts? </p><p></p><p></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="shooter5635, post: 424245, member: 21771"] Alright. I picked up a 2017 Alumacraft MV1648 NCS and I LOVE it. It's incredible the difference in this boat vs my previous flat bottom. Anyway, I threw my 1989 2 stroke evinrude 15hp tiller on the boat. 2 guys plus hunt load trimmed out correctly and I'm traveling 18.9 mph at 6200 rpms. I have a Solas 9.25 x 10 prop on the motor now. Prop slip calculated out to be 22. I heard that you want prop slip around mid teens for your average boat. I read up on prop slip, and understand what it is but I read on this forum that lowering prop slip will not help performance which just doesn't really make sense to me. Can someone offer an explanation? I'm also looking at getting a new prop if it'll help the motor. I found an evinrude spec chart (https://www.rubexprops.com/boat-propellers/rpm-range/?make=Evinrude) and I'm 800 rpms under max rev (7000 per the chart). I used the prop calculator in the sticky and it suggested I go with a 9 x 9. Thoughts? Sent from my iPhone using Tapatalk [/QUOTE]
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Looking for prop explanation, not just answer
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