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Trim tabs indicators

Discussion in 'Carver Yacht' started by Joe Graceffo, Jul 31, 2016.

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  1. Joe Graceffo

    Joe Graceffo New Member

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    I have a 1994 390. There is no tt indicators with it. Is it possible to retro fit indicators? Is it possible to do any damage by keeping the tt switch down too long or are there limit switches on the tt actuators so as not to damage them if the tt switch kept on too long?
  2. Capt J

    Capt J Senior Member

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    No, the fluid generally bypasses when the tabs reach full extension. Yes, you can add TT indicators if you have bennett's, not sure about the other brands. Lenco and quick yes.
  3. Joe Graceffo

    Joe Graceffo New Member

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    Thanks Capt J. I have Bennetts. I will look in to it as I prefer to know where they are set. I presume one indicator per side? I saw a video of interruptors? from a Swedish company that claim they can act as roll inhibitors so I was wondering if the tt could be set at different levels depending on sea conditions to improve the ride.
  4. CaptPKilbride

    CaptPKilbride Senior Member

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    I think the "interruptors" you are referring to are "interceptors". Humphree interceptors do have an Active Ride Control system advertised to reduce pitch and roll. Naiad has an active ride control system using interceptors to dampen pitch and roll.


    Highly unlikely the Bennett's could act as roll inhibitors, though they can be used to correct list, help adjust trim, based on conditions to give a better overall ride.
  5. Joe Graceffo

    Joe Graceffo New Member

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    Yes you are right Capt P. Interceptors. Don't know how well they work to dampen roll and pitch.
  6. CaptPKilbride

    CaptPKilbride Senior Member

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    I dont know about the Humphree Interceptors, but have heard good things about the Naiads. Very effective at lessening roll and pitch, as seen in that youtube video.
  7. captnrontx

    captnrontx New Member

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    This is a good conversation for me because I am in the same situation with my 1991 Carver 370. I have also wonder if holding the tab button down too long will damage the system.
  8. Jonza

    Jonza New Member

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    Hi, I installed interceptors by Volvo Penta, branded I guess, on my 7 meter commuter with a 150 hp outboard - worked great and was really easy to do. They also had LED indicators and, if one wanted, automatic ride control - I opted not to. At that time, around 9 years ago, there was no info on any anti-roll function though. P.s. They came in several sizes D.s.
  9. Capt J

    Capt J Senior Member

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    The ones manufactured for/by Volvo were origionally made by QL. I agree that they do work very well.

    Humphrees is it's own brand and has combined a gyro compass and brain to adjust each trim tab individually as needed to make the boat handle better like a stabilizer.
  10. Kapn

    Kapn Member

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    On the Bennett tabs, I think that adding indicators involves replacing the rams and running wiring from the tabs to the helm. There is a fine coil of wire that is in the ram and it works on resistance. Seem to break all the time or read incorrectly. I'm not sure it's worth the money since you can't damage them by holding too long.
  11. Joe Graceffo

    Joe Graceffo New Member

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    Thanks for that info, Kapan. The interceptors are looking more attractive.
  12. Capt J

    Capt J Senior Member

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    You don't need to replace the rams as far as I know with Bennetts. I have a boat sitting in salt water with the Bennett indicators that we haven't had a problem with in 6 years or so.

    As for the intercepters it is going to be very expensive to change your tabs to them and quite frankly not worth the money. Trimming your boat is easy to do simply by feel and keeping an eye on your SOG on your GPS.