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280 vs 380 Mercury K-Planes

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280 vs 380 Mercury K-Planes

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Old 08-19-2015, 06:55 AM
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Default 280 vs 380 Mercury K-Planes

I'm planning to upgrade my regular electric Lenco trim tabs to either 280 or 380 K-Planes. It's not much more, cost wise, to buy the 380 K-Planes over the 280 K-Planes. I was planning to buy the 280's, but after discovering the small price difference I'm not sure what to do. What do you guys recommend?

Thanks
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Old 08-19-2015, 07:43 AM
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I'm sure you'll get some educated answers from members but if I was to have a guess, I'd say bigger tabs are not always better and 380's sound big on a 28 foot boat, especially if you're replacing standard lenco tabs. Please wait for a few answers before jumping.

If you decide on the 380's, you may want to take a look here....
http://www.offshoreonly.com/forums/s...0-kplanes.html

RR
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Old 08-19-2015, 08:09 AM
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I believe that going from Lenco to 280's is a pretty big upgrade alone. Also not sure if drives would clear the 380's
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Old 08-19-2015, 08:13 AM
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I had a 28 foot boat and did the swap from 280's to 380's. I took them off after a few test rides in different conditions. They boat reacted way to fast, and tossed the it around. In this case bigger was not better.
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Old 08-19-2015, 09:11 AM
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I believe the Dana HP 1000 is between the 280 and 380 K tabs in length (24 inches) You may want to consider them. I have them on my Velocity VR 1 and am very pleased with them.

http://www.marineindustrieswest.com/...6-0d99f1b30c8b

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Old 08-19-2015, 10:37 AM
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When I was buying tabs for my 28 Velocity I spoke with the factory about what size to get. I was told the 380's were a lot of tab on a 28 so I went with the 280's. I have wondered since if I should have got the 380's lol. The 280's do work well on my boat though.

Like you said the 380's aren't that much of a price difference. You could always trade the 380 plates for a set of 280's if you don't like them. There are plenty of people looking to trade. Heck I might be one of them.
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Old 08-19-2015, 10:44 AM
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Here you go some 280s in the swap section. And a reliable seller.

http://www.offshoreonly.com/forums/s...lines-ect.html

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Old 08-19-2015, 10:48 AM
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If I were you and its between buying 280 and 380 I would buy the 380, since cost is nearly the same, and then trade out the 380 plates + cash for 280 plates. It would be easy to find someone on OSO to do the deal.
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Old 08-19-2015, 11:02 AM
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Originally Posted by underpsi68
When I was buying tabs for my 28 Velocity I spoke with the factory about what size to get. I was told the 380's were a lot of tab on a 28 so I went with the 280's. I have wondered since if I should have got the 380's lol. The 280's do work well on my boat though.

Like you said the 380's aren't that much of a price difference. You could always trade the 380 plates for a set of 280's if you don't like them. There are plenty of people looking to trade. Heck I might be one of them.


underpsi68, did you have regular trim tabs before you upgraded? Is there a certain reason why you are wondering if you should of went with the 380's? So the plates are interchangeable? Sorry for all the questions, just want to be sure before I buy them.

Thanks
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Old 08-19-2015, 11:15 AM
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Originally Posted by VoodooRob
If I were you and its between buying 280 and 380 I would buy the 380, since cost is nearly the same, and then trade out the 380 plates + cash for 280 plates. It would be easy to find someone on OSO to do the deal.
I upgraded from 280's to 380's on my 34' CC & I was able to swap my 15hr 280's EVEN for a BRAND NEW pr of 380's (we just swapped the bottom plane plates). The original owner of the 380's was planning an upgrade to his renovated Vee when he ultimately realized that the 380's would interfere w/ his outdrives. So that's the 1st thing to consider.

Personally I think that the 380's are both more efficient & effective. A short 280 has to has to be lowered further in order to provided the same lift a 380 can. The 280 ends up dug into the water & scrubs off more speed. Yes you have to pay more attn as to how much tab you apply w/ the 380's b/c they'll respond quicker but I don't think they are dangerous. After my swap / install I set them at what I measured to be 0 or level w/ the hull bottom. I had someone else run my boat up to 50mph & another hold my ankles while I looked over the transom. As suspected the planes were gliding right on the waters surface w/ no angle ultimately providing additional stability as if my boats hull surface was another 30" longer.

Obviously the the conditions you boat in, the boat size, style, weight & how you boat all play into this decision.

Just my $02.
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