K&B 11cc hull design
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http://www.modelpowerboat.com/forum/downloads/cat-5.htm
they have two tunnel hulls listed on this site, haven't seen too many tunnel hull plans for free, really about the only type of hull that actually works well with an outboard. Years ago put an outboard on a mono, waste of a motor and boat, went from a fast inboard to a slow outboard! Back in the 80's people tried riggers, never see them anymore, suppose you could put one on an offshore cat, not optimal though.
You need cad software to see those plans above, they are in dfx format.
they have two tunnel hulls listed on this site, haven't seen too many tunnel hull plans for free, really about the only type of hull that actually works well with an outboard. Years ago put an outboard on a mono, waste of a motor and boat, went from a fast inboard to a slow outboard! Back in the 80's people tried riggers, never see them anymore, suppose you could put one on an offshore cat, not optimal though.
You need cad software to see those plans above, they are in dfx format.
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If you can build a 47" WOF tunnel, I have the JD plans. Send me your email and I'll send them forward. You can take the pdf files and have a print shop print them out for you.
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i have a 40 inch dumas skater hull not in production any longer but i run a K&B 7.5 on it and it handles well i also have run it with the 11 cc and it also runs good tends to drop its ***** due to the cg change with the heaver engine alittle weight in the bow would correct this i also have a prather Lapcat III hull that came with the 11 cc engine it s a good pleasure boat but wont be competitive if racing i know i will get slamed for saying this but if you like cats you could try and an avenger by aeromarine im not real big on tunnrlhulls as you need calm water to run and where i boat we dont get that much where i boat would change if i had the water conditions to run on