floating boat lift

Discussion in 'Boat Design' started by gregs, May 16, 2007.

  1. CDK
    Joined: Aug 2007
    Posts: 3,324
    Likes: 146, Points: 63, Legacy Rep: 1819
    Location: Adriatic sea

    CDK retired engineer

    This one doesn't float, but it lifts my 3.5 metric tonnes boat high and dry.
    Two threaded spindles, bronze nuts with ball bearings under them for easy turning under load and some stainless steel tube to form a vise.
    Under the bow, not visible, is small carrier with rubber rolls.

    I've used this system for many years, five years ago added another 4" to the bow carrier when the sea-level rose and recently discarded it all because the flood extremes are catching up with me again.
     

    Attached Files:

  2. TollyWally
    Joined: Mar 2005
    Posts: 774
    Likes: 26, Points: 0, Legacy Rep: 423
    Location: Fox Island

    TollyWally Senior Member

    CDK,
    Your boat and location match my own situation fairly closely. Do you have any photos you could post showing more details? Thanks.
     
  3. mralda
    Joined: Jul 2009
    Posts: 9
    Likes: 1, Points: 0, Legacy Rep: 12
    Location: Guatemala

    mralda Junior Member

    I'll put the boat in the water tomorrow and will take some new pictures...
     

  4. CDK
    Joined: Aug 2007
    Posts: 3,324
    Likes: 146, Points: 63, Legacy Rep: 1819
    Location: Adriatic sea

    CDK retired engineer

    All pictures were taken from the next pier, so they show no details, but I made you a crude drawing, showing half of the lift and the bow rollers.
     

    Attached Files:

    • lift.jpg
      lift.jpg
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