DSS foil type of design

Discussion in 'Boat Design' started by ujm9, Nov 1, 2019.

  1. ujm9
    Joined: Jun 2015
    Posts: 1
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: Africa

    ujm9 New Member

    Hi everyone

    I am looking into wasting some money on modifying my boat.
    She is an 18ft Jeanneau Microsail (replica) it was built here in South Africa with a solid deck (no balsacore) and strengthened in a few areas that were issues on the original boats. A 1.5m fixed keel was used instead of the drop keel.

    With a fixed keel it has opened up the cabin area a lot but this is no luxury boat, it is purely used for racing.

    I would like to add something along the lines of the DSS Foils used on a 21ft Mini Transat that is photographed on their website.
    The one thing that I cannot wrap my head around is the controls of the system.
    What controls are used to push or pull the foils from windward to leeward?

    I have thought of an electric system but that involves using large motors with high holding torque to counter the foils pushing back in and in turn will draw a high current constantly.
    The second idea was a hand crank system but what would I use to hold the foils in place and what type of system will it be: belts, worm screw, etc.?

    I would highly appreciate some inputs and ideas into controlling the foils.

    Thanks
    Ujm9
     
  2. tspeer
    Joined: Feb 2002
    Posts: 2,228
    Likes: 185, Points: 63, Legacy Rep: 1673
    Location: Port Gamble, Washington, USA

    tspeer Senior Member

    The boat's only 18 ft - just do it by hand. A line attached to the middle of the foil led to a block on each side of the hull and thence to a cleat on deck or in the cockpit. It's really no different than rigging a traveler.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.