rc canting keeler canard setup

Discussion in 'Boat Design' started by lawbreaker, Jun 6, 2015.

  1. lawbreaker
    Joined: Jun 2015
    Posts: 1
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    Location: nz

    lawbreaker New Member

    im doing a little rc canter 950mm oa with a stock maritime vo70 keel but im stuck on the canard. i want it lift inducing so the boat will go bow up and foil on the keel when shes sending hard, would it be better to have a fixed single board with a T foil or lifting L boards like the new safran and banq pop imoca 60s?
     

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  2. Doug Lord
    Joined: May 2009
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    Location: Cocoa, Florida

    Doug Lord Flight Ready

    I think if you want the whole boat to foil then a t-foil would be better. The Saffran version of DSS uses technology first used on the AC 72's but it doesn't allow the whole boat to fly and you'd have to have a way to retract the windward board.
    The T-foil would have to use a wand to move a flap for altitude control to work effectively and you would have to have substantial RM(righting moment).
    You might consider on-deck movable ballast which would generate more RM with less drag than a canting keel and use a small fixed keel for self-righting.
    The microMOTH in the pictures didn't work too well because it didn't have ballast in the daggerboard to make it self-righting and the "Trapeze Power Ballast System" only moved side to side-it should have been able to move fore and aft as well. It was a handful but probably could have been tamed with a small amount of fixed ballast. Remember: weight is NOT as critical as is righting moment(RM). Welcome to the forum and good luck!
    Heres a video you may have seen of a canting keel boat wanting to foil but apparently lacking rudder T-foils:
    https://www.youtube.com/watch?v=ZonzSaQx5TQ
     

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  3. Doug Lord
    Joined: May 2009
    Posts: 16,662
    Likes: 332, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

    Quant 23 Foiler Scow

    Check out this foiling keelboat-first ever-could make a great RC model if done right. Check out the pdf:
     

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