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Jan 23rd, 2013
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advice on how to trim boat out to run shallow #13771648 11/15/20 08:53 PM
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I have been logging some hours on my kinda shallow water boat and have been experimenting with the trim, trim tabs and jackplate. I have a 23 ft pocket tunnel with trim tabs, a shaw wing cavitatioin plate, a hydraulic jack plate and a four bladed prop (not cupped). I had it out and was started raising the jackplate while on plane. I could get it up to about 3 inches up before the water pressure needle started to begin to fluctuate just a bit. But also at that point my bow was really high. I dropped my trim tabs all the way down and the bow came down and I was able to raise the jackplate to 3 1/2 inches and the water pressure needle stayed steady. Is this the point where the boat is running the most skinny? Tabs down and bow down, or tabs up and bow up. I am trying to get this figured out before I actually start trying to run shallow. I have also heard that running tabs full down can keep you on plane at much lower speeds? forgot to check that. Any advice would be appreciated. Thanks.


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Re: advice on how to trim boat out to run shallow [Re: carb] #13771878 11/16/20 12:46 AM
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Beak47 Online Content
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Pat Goff is the Expert- or one of them anyway!


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Re: advice on how to trim boat out to run shallow [Re: carb] #13771936 11/16/20 01:32 AM
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Flat is thin. Bow high is not.

You might try blocking off the top three water intake holes, that'll keep your impeller from cavitating.


Pat Goff
Seadrift TX
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