calculating hull speed... needing to resolve

Discussion in 'Multihulls' started by SCATAR, Mar 22, 2010.

  1. SCATAR
    Joined: Mar 2010
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: london

    SCATAR New Member

    we have a very rigid rather overbuilt, over-engineered heavy 18m custom catamaran. the original owner is deceased and boatyard lost all its records in hurricane katrina. from what I may make of the four engineering drawings found she sits about 8” (±2”) low. the result is a cat that struggles at 6-7 knots in 20-30 knot winds. we are considering a new sail plan but wanting, feel we are needing, to have a calculation of the hull speed. could anyone recommend someone to preform these calculations?
     
  2. marshmat
    Joined: Apr 2005
    Posts: 4,127
    Likes: 148, Points: 0, Legacy Rep: 2043
    Location: Ontario

    marshmat Senior Member

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