Radio Controlled Foiling America's Cup Catamaran

Discussion in 'Projects & Proposals' started by Doug Lord, Apr 3, 2015.

  1. Doug Lord
    Joined: May 2009
    Posts: 16,653
    Likes: 322, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

    Since the rules were just so dramatically changed for the full size boats AND since two of us have already built boats(as AC 55's from the previous thread) I wanted to come up with basic Rules that would be as close to the new rules as possible while allowing the two completed boats to be immediately legal. John Xman suggested length and beam done to a 1/10th scale. That worked well allowing the two completed boats to closely fit while maintaining the proportions of the full size boats.
    AC4.8RC:
    Length: 4.8'=57.625" (rounded)
    Beam: 2.78'=33.375" (rounded)
    Tentative rules based on my D4Z:
    --movable ballast system legal and may exceed maximum beam-no restrictions,
    -- foils may extend outside the maximum beam.
    --rudders may be transom hung
    --SA up to 1900sq"
    --no channel restrictions
    --no foil type restrictions
    --no rig restrictions
    ===================
    As far as I'm concerned that is the Basic set of rules until more boats are built and an excellent foiling system or systems are developed and proven.
    -No boat built under these basic rules may later be disqualified or modified in any way by later rule changes.
    My primary direction now will be to complete and foil my boat with three different foiling systems as well as experiment with the Trapeze Power Ballast System. I would imagine Jim in Australia will be doing similar development .
    The idea and absolute requirement for a successful RC Americas Cup foiling cat is:
    1-that it foils in light air,
    2-that it foils upwind,
    3-that it routinely gybes on foils,
    4-that it is capable of sailing a triangular or windward/leeward course faster than any comparable size monohull.
    These will be tough requirements to meet but are essential for future growth of the class.
    The D4Z below is one of the first two AC4.8RC cats and is nearly complete and will be under constant development. Jim in Australia's prototype is under development but is sailing and has foiled for short bursts.
     

    Attached Files:

  2. Doug Lord
    Joined: May 2009
    Posts: 16,653
    Likes: 322, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

  3. Doug Lord
    Joined: May 2009
    Posts: 16,653
    Likes: 322, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

  4. Doug Lord
    Joined: May 2009
    Posts: 16,653
    Likes: 322, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

    D4Z, an AC 4.8RC America's Cup Cat

    All the electronics ready to install:
    click-
     

    Attached Files:


  5. Doug Lord
    Joined: May 2009
    Posts: 16,653
    Likes: 322, Points: 93, Legacy Rep: 1362
    Location: Cocoa, Florida

    Doug Lord Flight Ready

    Last edited: May 13, 2015
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