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Jon and V Boat Conversions & Modifications
Derek's Tracker TX-17 rebuild
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<blockquote data-quote="Derek" data-source="post: 311061" data-attributes="member: 2615"><p>So I took the boat out yesterday to do some testing with/without the hydrofoil. </p><p>For reference 77 Johnson 70hp with 13.5x18 stainless Raker prop. It should have 5500 rpm @ WOT</p><p></p><p>- with hydrofoil: 32mph at 4700 rpm</p><p>- without hydrofoil: 35mph at 5100 rpm</p><p></p><p>Problem is the boat is still porpoises somewhat while I am by myself without the hydrofoil. That is with the (2) group 31 batteries moved forward. I can move my rear cranking battery (group 29) about a foot forward, but I'm not sure that will help much.</p></blockquote><p></p>
[QUOTE="Derek, post: 311061, member: 2615"] So I took the boat out yesterday to do some testing with/without the hydrofoil. For reference 77 Johnson 70hp with 13.5x18 stainless Raker prop. It should have 5500 rpm @ WOT - with hydrofoil: 32mph at 4700 rpm - without hydrofoil: 35mph at 5100 rpm Problem is the boat is still porpoises somewhat while I am by myself without the hydrofoil. That is with the (2) group 31 batteries moved forward. I can move my rear cranking battery (group 29) about a foot forward, but I'm not sure that will help much. [/QUOTE]
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Derek's Tracker TX-17 rebuild
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