Has this been tried?

Discussion in 'Boat Design' started by FirstLight, Aug 21, 2013.

  1. FirstLight
    Joined: Sep 2007
    Posts: 78
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    Location: North Carolina

    FirstLight Junior Member

    This is a playing around idea...

    Sort of a hybrid between a proa, trimaran and International Canoe.

    Idea is to have a performance based vaka with two outrigger type amas not designed to carry sailing loads, only moveable ballast (2 people).

    This is the reason the amas are so high off of the water.

    With steady breeze I can visualize this working out ok with ability to power up and down with sheet. Not sure at what point (if) stability would kick in. And in lighter breeze (or motoring) seems like things might get pie shaped.

    Just the same, wanted to get an idea of something like this has been done.

    Seems to give the best of a few concept with exceptional righting moment of tris and proa and smaller loads in beams (proas).

    By the way, this idea was not influenced by Star Trek Enterprise..

    Attached Files:

  2. Jeroenvds
    Joined: Jun 2013
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    Location: the Netherlands

    Jeroenvds New Member

    You mean a skiff?
  3. messabout
    Joined: Jan 2006
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    Location: Lakeland Fl USA

    messabout Senior Member

    This is a takeoff on winged dinghys. WIngs being more or less flat extensions reaching out from the sides of the boat. Sailors who are sufficiently agile and skilled do not need the amas at the ends of the wings. No need to carry that extra weight and windage.

    International canoe hiking planks are often shaped such that they will provide some lift if they happen to hit the water.
  4. JRD
    Joined: May 2010
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    Location: New Zealand

    JRD Senior Member

    Yep - Has been tried

    HSP skiff developed by the late Frank Bethwaite in Australia. It was able to sail faster than the wind in many conditions. I dont think they ever went into production though. I recall this was due to insurance and liability issues as it was considered a very radical idea at the time.

    Attached Files:

  5. FirstLight
    Joined: Sep 2007
    Posts: 78
    Likes: 6, Points: 8, Legacy Rep: 21
    Location: North Carolina

    FirstLight Junior Member

    Nice Find


    What a great photo. That's exactly the concept I had in mind. At some point a skiff is no longer a skiff but a trimaran without amas.

    Thanks for pointing it out..

    I've moved off of this to more of an inshore trimaran.

  6. tunnels

    tunnels Previous Member

    How about some foils and really make it go !! :D:p
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