Planing Kayak

Discussion in 'Boat Design' started by latman, Sep 10, 2014.

  1. latman
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    latman Junior Member

    Is it theoretically possible to make a flat bottomed K1 kayak that can plane ? (ICF rules mandate no concave surfaces and 5.2 metres maximum length ) thanks Ian ps elite paddlers can presently cover 1km in approx 3min 30sec
     

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  2. NoEyeDeer
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    NoEyeDeer Senior Member

    Why would you want it to plane?

    Le me guess: planing boats are really fast, so if you can make a K1 plane it will break records. Right? :D
     
  3. latman
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    latman Junior Member

    basically yes ....
     
  4. Richard Woods
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    Richard Woods Woods Designs

    The planing concept has been discussed before elsewhere

    By definition, to be planing properly you need a lifting surface and an angle of attack. That implies an efficient AR, which a canoe does not have. And the AofA generally means the stern squats and bow lifts

    Furthermore most planing boats are inefficient at low speeds - on a typical speed boat you throttle down once on the plane. Implying you need more power to get planing. Not sure if a canoeist can do that

    Richard Woods of Woods Designs

    www.sailingcatamarans.com
     
  5. kerosene
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    kerosene Senior Member

    You should read about Uffa Fox's "best boat". He designed two rowing singles, one displacement and one planing one. Top speed ended up near identical
     
  6. Leo Lazauskas
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    Leo Lazauskas Senior Member

    As Richard Woods pointed out, the planing variant will have quite high drag at low speed.
    Therefore, over a fixed length course of, say 1000m, the planing version would probably lose because it would reach its top speed later in the race than the displacement variant.

    A better idea, although banned under Olympic rules, is the hydrofoil version.
     
  7. Manfred.pech
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    Manfred.pech Senior Member

  8. NoEyeDeer
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    NoEyeDeer Senior Member

    The basic problem is that to get a shape which can potentially plane, you will be incurring a drag penalty when it is not planing. This will slow you down, meaning less chance of getting up on the plane.
     
  9. Petros
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    Petros Senior Member

    it can be done with foils;

    [​IMG]
     
  10. latman
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    latman Junior Member

    I knew they could foil (they are all olympic level paddlers ) but as mentioned that design is not allowed under current federation rules , its just a matter of how much power can be generated to lift it onto the plane


    ps attached photo is an early test mule
     

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  11. latman
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    latman Junior Member

    this is the design they hoped to commercialize/sell but most normal folks do not have the needed power.....
     

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