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Please help me figure out how to drive my boat and get it on plane

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Old 09-17-2004, 07:03 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

What brand of props are you running? With a quick glance, they sure don't look like they have much blade surface area. Seems as though everything else your doing is in line.
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Old 09-17-2004, 07:14 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

38 KV is correct

I had the same boat he had years ago and the same problem you are having

i went from the props you have to the mirage and it helped alot then i went to the 4 blade bravos and the problem all but went away

When i first bought the scarab i had to get out in following seas to get it up on plane

CHANGE THE PROPS you wont believe the difference

this is my old boat from years ago
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Old 09-17-2004, 07:52 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

Try a spacer, a 1/2" lower makes a big difference. On my 37 Active Thunder I tried a 1/2" to 1 1/2" spacer, what a difference popping up on plane, then went to 5 blades. All trial and error. I went from 98mph to 94 but was much more user friendly. Good luck. Jeff
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Old 09-17-2004, 08:33 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

Definitely try a set of four blade props that will probably take care of your problem. Like Jassman said, next step would be to install a spacer. Good luck....
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Old 09-17-2004, 08:36 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

My boat is 40' with about the same power and TRS. It has Bravo 4 blades and planes in about 5 seconds. Go with the four blades.
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Old 09-17-2004, 10:08 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

ya, cleavers aren't a holeshot prop especially an that setup.I'd say 4 blades.
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Old 09-17-2004, 10:18 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

Props, props, props, props. Try a set of 4-5 blades with more pitch. Diameter should be close.

Cobra in Miami has a prop exchange program.
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Old 09-17-2004, 10:25 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

new props will def solve you problem, but if you HAVE to use the ones you've got, here's something we had to do with a boat with a rather high X: (keeping drives and tabs tucked in)

Similar to Ryan's case, we needed to slowly turn the boat from right to left carving out an S in the water...they would gradually catch and it was a real pain!

I would also try varying the rate at which you pour the coals to her...try runnning it right to 4000 and as you gain speed, slowly eas back on the sticks to get her to catch. If you find that that ain't happening, don't sit there and wind it out, cause freewheeling motors like that ain't so good

The last thing to try is feathering the throttle...getting some speed up with relatively low rpms, gassing it a little to gain more speed, backing off to let 'em catch up and continuing this process until yer fully on plane...

Last edited by Sean; 09-17-2004 at 10:34 AM.
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Old 09-17-2004, 10:42 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

One other thing that I noticed from the pic of your boat is that the tabs are a true rectangle, not tapered like most, they could be digging enough of a hole in the water to take water away from the props. This is a tough situation because you need the tabs to get on plan, but they are too wide at the back and are taking clean water away from the props. Try the four blades first because that is cheaper than changing the tabs.
Robert
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Old 09-17-2004, 11:00 AM
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Default Re: Please help me figure out how to drive my boat and get it on plane

Get in touch with a good local prop shop. One with experience and who will allow you to swap out different props to see which one will work best.

One option is to try turning/walking the boat from side to side. This may help when your boat starts to cavitate.

If all else fails, one or two JATOs should do the trick.
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