retractable propulsion

Discussion in 'Inboards' started by mattlotar, Mar 6, 2007.

  1. mattlotar
    Joined: Mar 2007
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Groningen

    mattlotar New Member

    Hi,

    I am a student from Groningen, Holland (Hanzehogeschool) and studying mechanical engineering. For an assignment of my skool I have to design a propulsion system that when it isn`t used it will desapear in the hull and when it is used it can be lowered. I am trying to get info of the internet, but there isn`t much i can find.:( Maybe somebody can help me with info, where did you see it before, wich company build it and that sort of stuff!!!!
     
  2. Poida
    Joined: Apr 2006
    Posts: 1,189
    Likes: 51, Points: 48, Legacy Rep: 497
    Location: Australia

    Poida Senior Member

    Hi Mattlotar

    I've only seen one site, www.easy.i8.com
    They have a design of a catamaran that looks like the twin outboards retract into the hull when not in use. Excellent for security when a boat is moored.

    Regards
    Poida
     
  3. kengrome
    Joined: Jul 2006
    Posts: 718
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    Location: Gulf Coast USA

    kengrome Senior Member

  4. SamSam
    Joined: Feb 2005
    Posts: 3,900
    Likes: 197, Points: 63, Legacy Rep: 971
    Location: Coastal Georgia

    SamSam Senior Member

    Kengrome, that was good stuff! Here's a little more. Sam
     

    Attached Files:


  5. brian eiland
    Joined: Jun 2002
    Posts: 4,963
    Likes: 186, Points: 73, Legacy Rep: 1903
    Location: St Augustine Fl, Thailand

    brian eiland Senior Member

    Wait a couple of days and my new design will be posted on my website. It has retractable prop units.

    For a hint take a look at this:
    http://boatdesign.net/forums/showthread.php?t=9432
    http://boatdesign.net/forums/showthread.php?t=10429
     
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