Flying Moths

Discussion in 'Sailboats' started by AYACHT, May 20, 2005.

  1. AYACHT
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    AYACHT Junior Member

    Any good internet sights for building one of the new foil Moths.
    Details, Layup, Foil shapes? Looks like fun.
     

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  2. Doug Lord

    Doug Lord Guest

  3. Eric Sponberg
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    Eric Sponberg Senior Member

    Ayacht,

    As a matter of fact, Doug Lord and I are working on a new design for a boat similar to, but better than, a Moth foiler. Doug has put together some ideas on how to make the foilers work better, and I am putting the engineering details together to be able to build them. If you are interested in learning more about the Aeroskiff design, please contact me privately at ewsponberg@sponbergyachtdesign.com.

    Eric
     
  4. astevo
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    astevo Junior Member

    by the way the guy in the photo is about to get absolutley nailed.
     
  5. TaSSie_deVil
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    TaSSie_deVil Resident Boataholic

    make a note of the "L" plate on the bow...

    another site with hull contruction/engineering would be the AMC moth crew site
    http://academic.amc.edu.au/~moth-crew/

    the 2nd hull off their mould is just getting it's wings at the moment, has flown once (but broke the foils... back to the drawing board/laminating bench)

    "new design for a boat similar to, but better than, a Moth foiler." --- excuse me? The Aerofoiler is yet to "foil". So, how can that be better than a Moth foiler?
     
  6. cyclops
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    cyclops Senior Member

    A web search of--moth racing clubs--- moth hydrofoil clubs-- will get you in touch with people near you.
     
  7. Eric Sponberg
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    Eric Sponberg Senior Member

    Tassie Devil,

    I should clarify that--we ANTICIPATE it will be better than a Moth foiler. Yes, we have yet to prove it, and that will come only from building a prototype and sailing it. What we anticipate is that the boat will be easier to control and, therefore, have less chance of crashing; it should get foil-borne at lower wind speeds, and it should be able to jump effectively and safely. The boat should also be easier and quicker to rig, and put away, on the beach. That is the goal. We think it can be done.

    Eric
     
  8. TaSSie_deVil
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    TaSSie_deVil Resident Boataholic

    Thanks for the clarification Eric.

    I agree, the possibility does exist that the aerofoiler could be far more user friendly than a foiler moth... let's face it, the moth has always been a handfull, irregardless of configuration as a foiler or not. As the aero is a fair bit wider, it should handle a lot better in non-foiling conditions, such as launching and retrieving and low wind conditions. However, I'm doubtful that it'll be quicker to rig than a moth; I can rig my moth (without foils at the moment, but it hardly takes a long time to put in a centreboard and snap on a control cable...) in 15 minutes from scratch (no wings on, only basic sail controls fitted). The rig on the aero (as i've seen in piccys) is far more complex than a simple pocket luff, and as such should take longer to rig.

    I'm looking forward to seeing the aerofoiler work, as it is in ways synonymous to Frank + Julian Bethwaites HSP projects... not all of them worked, but they eventually did lend a lot to to the development of modern skiff rigs.

    Tassie
     
  9. Doug Lord

    Doug Lord Guest

    aeroSKIFF 14 foiler

    Tasse ,the pictures you've seen are of the aeroSKIFF 16 two person prototype with a main and jib. The new boat uses an unstayed rig with a high speed square top sail and is a singlehander(nominally); we will have help from Barry Spanier one of the worlds best windsurfer sail designers(Gaastra) and the designer of the sails for Long Shot years ago. Stepping and unstepping the mast will be a piece of cake.
    The beam on the 14 is 12'(!) substantally more than the original 16 prototype and is that wide to allow lots of righting moment.The beam also allows a fairly small buoyancy pod. Bascally, at this point the "pods" will simply plug in making set up very simple.
    The foil loading is less than a Moth but the sail area per sq.ft. of foil area is greater. The weight per sq.ft. of SA is the same but the ratio of righting moment to heeling moment is greater than on a Moth. In addition ,the new boat will carry a max competitive crew weight substantially higher than a Moth while featuring a weight equalization system that allows 140 pounders to sail.
    The Moth has been my inspiration for years and has begun a revolution in sailing that I hope this new boat will be part of.
    But nothing, no matter how well it sails, takes anything away from the historic achievements in the Moth Class by guys like Ian Ward, John Ilett ,Garth Ilett and Rohan Veal. They are the pioneers that have transformed monohulls into boats faster than catamarans; into boats the truly fly in light air and into boats that redefine sailing efficiency.
    Eric and I are workng hard to see to it that the aeroSKIFF 14 meets the targets we've set for it ; the 16 remains under development as we continue to refine it.
     
  10. ejehn
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    ejehn New Member


  11. Tiger Moth
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    Tiger Moth New Member


    In reality there is nothing better than a Moth.
     
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