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Tug
Joined: 22 Jun 2007
Posts: 992
City/Region: Sault Ste. Marie
State or Province: ON
C-Dory Year: 1985
C-Dory Model: 22 Angler
Vessel Name: Drifter
Photos: Drifter
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 Posted: Sat Feb 18, 2012 7:57 pm Post subject: |
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| I have tried a variety of devices like." Permatrim " and they all add drag. I always ended up removing them.I waste of money in my opinion. Apparently trim tabs are highly rated by C-Dory owner's if you use a kicker, seems they do wonders in helping you get on plane and probably is a good investment.. Tug |
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thataway
Joined: 02 Nov 2003
Posts: 21385
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Sun Feb 19, 2012 2:51 pm Post subject: Re: permatrim |
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| Jeff Brigner wrote: | | I would say that over all permatrim has helped to increase my speed because of stopping the pounding. My trim tabs levels the boat at speed but never did a lot to keep the nose down and boat from pounding. If the permatrim is not submerged some I don't think it could do what it is designed to do, just like the trim tabs need to be submerged. My speed is very effected by weight, wind and water conditions. Good luck with your test. |
Although I agree with much which Jeff says, I disagree that both the trim tabs and Permatrims need to be submerged. If you look at the water flowing off the bottom of the transom, the trim tabs should be just on the surface of the water. Same for the Permatrim. It can exert the force needed to push the bow down, with out increasing drag by being pulled entirely thru the water submerged.
There is a difference in the effect of the Permatrim on the 22 and 25. My first 22 had no tabs or Permatrim. I rode on some which did, and noted the difference. Our second 22 has trim tabs, and already has a Doel Fin (not as good as the Permatrim) but we will use it for now and see if we have to adjust the motor height. Our 25 came with tabs, and we ran it for a season before putting on the Permatrim (before the AK trip)--definately better with the Permatrim. But that motor was a little too low, and the prop too high a pitch for the boat weight and motor HP. Definitely in both boats (22 and 25) it will make the ride better going into chop from my observations and experience in boats with and without.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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hardee
Joined: 30 Oct 2006
Posts: 12637
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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| Posted: Mon Feb 20, 2012 1:11 am Post subject: |
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| localboy wrote: | | rogerbum wrote: | | localboy wrote: | Ah, the other eternal question; To Permatrim or NOT to Permatrim... 
I still haven't decided.  |
I really depends on three other factors:
1) Singles or twins?
2) Fuel injected or carbureted? And
3) Rollers vs. bunks on the trailer?  |
Exactly!!!
You forgot: Trailered or moored? |
Oh My Word  You forgot the Boat Plug Inney or Outey 
Harvey
SleepyC 
_________________
Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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