Pod/Hull extension design

Discussion in 'Boat Design' started by Connor Ferguson, Jul 20, 2019.

  1. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    Unfortunately the pictures don't quite show the "bad" pods issue, what is it ?
     
  2. Connor Ferguson
    Joined: Jul 2019
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    Location: Vancouver

    Connor Ferguson Junior Member

    Just that they don’t provide enough floatation. They have a beveled edge so there is no room for trim tabs.
    Plus the kicker and kicker bracket make it impossible for trim tabs.

    A few people have suggested a lighter motor and getting rid of the kicker. An extension pod would be cheaper then swapping to a lighter motor. I also need that kicker motor.
     
  3. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    I'd suggest trying a bolt-on to the cavitation plate lifting device, the rectangular ones seem as good as any, more in-trim for the engine, and see what happens, if the resting trim of the boat does not concern you.
     
  4. fpjeepy05
    Joined: Jan 2010
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    fpjeepy05 Senior Member

    I believe the resting trim is of concern for Connor.

    How much to extend the pods is just a guess without more information
     
  5. Village_Idiot
    Joined: Oct 2007
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    Village_Idiot Senior Member

    If those existing pods are foam-filled, are you sure they aren't water-logged? Even closed-cell foam eventually can get water-logged. That could potentially add a lot of weight to the stern.

    If that's the case, I'd remove the foam, rebuild the existing pods so they are hollow and watertight, and add a drainplug to them (this is how i have a boat set up).

    What kind of waters are you operating in? If they are calm waters, you can keep the pods (existing or new) even with the bottom of the hull, essentially lengthening the hull. This will provide the greatest stern-lifting effect, but also keep you from raising the bow when waves get high. OTOH, if you run in high waves from time to time and would like to raise the bow in those conditions, then you will want the flotation pods to sweep upward toward the rear, so that the transom becomes the pivot point in the rocker.
     

  6. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    Good point about the foam getting waterlogged, worth checking that.
     
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