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Jet Boats
General Jet Boat Discussions
UHMW usage on a jetjon, thoughts/advice needed
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<blockquote data-quote="CedarRiverScooter" data-source="post: 403866" data-attributes="member: 15465"><p>For initial build, I was overly concerned with shallow draft. Ended up with the tunnel too shallow & had cavitation issues. Any more than 1 inch of chop & it would just suck air. I tried about 5 variations of a 'spoon' with only partial improvement. So now I have taken the tunnel insert back out (the 3M 5200 was hard to cut, BTW). It is currently in pcs upside down on the trailer, waiting it's turn in my garage project lineup. I will remount the insert about 1.5 inch deeper - will require some aluminum forming to taper the leading edge back to hull. </p><p></p><p>My buddy went thru same type of trial & error with his jet jon, this is why I suggest keeping future revisions possible. A year ago I was convinced mine would perform perfectly.</p></blockquote><p></p>
[QUOTE="CedarRiverScooter, post: 403866, member: 15465"] For initial build, I was overly concerned with shallow draft. Ended up with the tunnel too shallow & had cavitation issues. Any more than 1 inch of chop & it would just suck air. I tried about 5 variations of a 'spoon' with only partial improvement. So now I have taken the tunnel insert back out (the 3M 5200 was hard to cut, BTW). It is currently in pcs upside down on the trailer, waiting it's turn in my garage project lineup. I will remount the insert about 1.5 inch deeper - will require some aluminum forming to taper the leading edge back to hull. My buddy went thru same type of trial & error with his jet jon, this is why I suggest keeping future revisions possible. A year ago I was convinced mine would perform perfectly. [/QUOTE]
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Jet Boats
General Jet Boat Discussions
UHMW usage on a jetjon, thoughts/advice needed
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