Find a prop that fits your boat, not the other way around.
My first Build
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The hole through the hull I made is probably too small. going to increase it a bit to get a better angle. Started small as I didn't want to have to try and add material back to the hull.Originally posted by fweasel View PostI have no experience with that hull, but on my 29" cats, the strut sweet spot was a good 3-4mm above the bottom of the sponsons, at a neutral trim angle. I could place the boat on a flat table without a prop, and the strut and stuffing tube would not touch.
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Yeah
Native Paul set me straight
The hole I made in the hull was to small. Increased it by 1/4" and the universe aligned. Perfect stuffing tube just need to trim the length a touch as straightening out the stuffing tube made it a bit closer to the motor and the tube is almost straight.
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Just curuois how hard was it to get rid of the JB Weld when you re-did the stuffing tube?NEVER SATISFIED RACING
Fine Design 32 V-Hull 4082+6s
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Well between the problems with my daughter's jeep and then loosing both the front wheel bearings in my Toyota, I didn't think I would find time to do anything on the boat. Anyway yesterday and today were quiet and rainy so I took advantage of it. Also added the hatch bolt kit. Basically ready for paint.
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I disagree..on my gas cat it's almost even.. but everyone of my electric cats are at least 2-5mm above bottom of sponsons..Originally posted by TheShaddix View PostAs a general rule you want the strut always inline with your sponsons, not below or above. This way it won't be creating any drag. Only your prop and the bottom of the strut should touch the water. When you set the boat on a flat table you should have all of the 3 parts touching down evenly. If you find that your prop is too small, put a bigger prop on. Only half of your prop needs to be in the water when it's on plane.
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Any reason yours are 2-5mm above bottom of sponsons...? Is there any advantage? I am not trying to argue the point, I was just under the impression that it's best to have the prop hub as close to the water as possible so the full blade (one of the blades when it's down) is in the water.
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I'm not experienced enough to tell you why, but when I was tuning my Blackjack 29 V3, the sweetspot for the strut was about 3mm above the bottom of the sponsons, all other factors being equal. I started with it dead even and picked up speed as it was raised.Originally posted by TheShaddix View PostAny reason yours are 2-5mm above bottom of sponsons...? Is there any advantage?Vac-U-Tug Jr (13mph)
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