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k planes and trim tabs difference

Old 11-05-2011, 03:11 PM
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What is the difference between k planes and trim tabs besides the price! I wanted to get opinions from people who have maybe had both, is there that big of a difference? Thanks for the help
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Old 11-05-2011, 03:15 PM
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K planes are trim tabs........made usually by keikhaefer hence the term "k" planes. K planes have more surface area and are usually longer than traditional trim tabs by say Bennett for example, and have a much greater reaction force on the boat.
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Old 11-05-2011, 03:32 PM
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k-planes and the like are far more heavy duty. Thick metal plates and heavy duty hydraulics.

And, as H&D mentioned they are typically longer. I have 380's and the plates are 30" long.
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Old 11-05-2011, 03:37 PM
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Vice grips.....locking pliers
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Old 11-05-2011, 04:27 PM
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Also, K-planes will react faster due to being Hydraulic, and having a dedicated pump.
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Old 11-05-2011, 05:41 PM
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What difference would one notice if they replaced 280 k-planes with 380 k-planes on the same boat? I am guessing you would have to use less tab to get the same result. Would the larger tabs make the boat run better/faster due to them "extending" the hull/length of the boat?
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Old 11-06-2011, 12:20 AM
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Originally Posted by rchevelle71 View Post
Also, K-planes will react faster due to being Hydraulic, and having a dedicated pump.
You can do the same with Bennets and Boat Levelers....2 pumps
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Old 11-08-2011, 08:00 AM
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Originally Posted by US1 Fountain View Post
You can do the same with Bennets and Boat Levelers....2 pumps
YUP,

I just havent done it yet
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Old 11-08-2011, 09:58 AM
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I have a 272 boss with a 500hp merc racing motor. xr drive. I have insti trim on it they were 12x12 I added 5" to them.
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Old 11-09-2011, 02:11 AM
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Had both the 380,s and 280,s on the same boat ,just switched the tabs ,as the backplates are the same .
I couldn,t notice much difference in handling /tab control ,boat seems to react the same ,could be different on other boats though.
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