Professional BoatBuilder article: Foiling Outboard-Powered Catamaran

Discussion in 'Boat Design' started by ProBoat, Mar 30, 2020.

  1. brian eiland
    Joined: Jun 2002
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    brian eiland Senior Member

    I actually look forward to criticism of my work, if it is justifiable, and not just mean-spirited. It can often result in a better finished product.

    When I was involved directly in the retail market and displaying product in the Annapolis boat shows and many other shows (as a distributor), I often would tell my suppliers (often manufactures) that they should come visit me in those shows and LISTEN to the concerns voiced by the people I was trying to sell their product to. You had to listen to those concerns, and how often any one particular concern might be voiced. That would tell you how much of an effort you needed to pay attention to any one aspect of a design.

    BTW, I'm not that convinced that the fellows who designed this boat know one hell of a lot about all of the compromises inherent in this size and kind of boat.
     
    Last edited: Apr 9, 2020
  2. ziper1221
    Joined: May 2018
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    Location: florida

    ziper1221 Junior Member

    That's why you bring them up when fishing, since they make no difference at anchor or at trolling speeds
     
  3. Russell Brown
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    Location: washington state

    Russell Brown Senior Member

    Well, I'm glad to know that I shouldn't post about what I'm designing and building on this thread, unless for some reason I want to read bullet lists of things wrong with it.
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    Are they easily raised , and lowered ?
     
  5. Squidly-Diddly
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    Location: SF bay

    Squidly-Diddly Senior Member

    I'm on record recently on this forum suggesting that a family/normie friendly mass market express cabin cruiser hydrofoil could be the "next big thing" in consumer boating. Foils to smooth ride and stay high and dry, and also to reduce rolling when stopped or low speed trolling.

    I figured a consumer friendly hydrofoil would require a bit more real engineering and testing than normal one-off custom design, that can be commissioned with great confidence due to so many very similar successful boats, so a consumer hydrofoil would require a big firm that is able to bet big.

    I didn't consider cat hydros.
     

  6. Mr Efficiency
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    Mr Efficiency Senior Member

    You will find plenty under "hysucat" ( hydrofoil supported cat). Been a while since I saw one, the foils were aluminium and were completely flat underneath, and a simple circle section on top. Seemed rudimentary, probably moved on from that. You will find plenty under "hysucat" ( hydrofoil supported cat). Been a while since I saw one, the foils were aluminium and were completely flat underneath, and a simple circle section on top. Seemed rudimentary, probably moved on from that. My ideas of a foil assisted cat, were more along the lines of something looking a bit like the inverted tail of the old "T-jets", swept back, winglets, perhaps a fence to stop aerated water bleeding down to the foils, and will the ability to change, a little, the angle of attack of the whole caboose. It should, in theory, be able to deflect obstacles encountered, out of the way, and not have debris and weed and stuff hang up on it. In practice, however, maybe not.
     
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