external bow or stern thrusters

Discussion in 'Sailboats' started by JVG-Temeraire, Jun 13, 2009.

  1. JVG-Temeraire
    Joined: Feb 2009
    Posts: 1
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    Location: Ladysmith, B.C.

    JVG-Temeraire Joanna

    i am considering using a product from a company called Sideshift at www.sideshift.com for my steel Rhodes 65 foot motorsailer instead of using normal internal bow thrusters for the following reasons:
    1-easier maintenance
    2-less maintenance
    3-better effect of thrust given much closer to either end of boat

    but aside from the fact that they are not the best looking, i am worried that they will slow down the boat too much as they hang in the water at either end of the boat (off the bow and just aft of the rudder under the hull.

    i think the stern thruster is the best choice, since i am told the drag will be 50% of the drag from the bow version and it will not be as noticeable.

    has anyone got any thoughts or experience with:
    1-this product to know it works well?
    2-the effect of drag on the boat when either sailing or motoring?

    thank you very much
  2. mark775

    mark775 Guest

    Here I've been trying to get the fairness of my hull and turbulence down to a gnat and others are hanging stuff like this down there. Let me just say this; I can SEE a boat running next to me slow down as his bow thruster dips below the surface.
  3. dskira

    dskira Previous Member

    Funny that stuff. What they don't invent to make docking easier.
    It seams they think we spend 99% of the time docking. Perhaps they are right afterall:p
  4. apex1

    apex1 Guest

    There is a hard word describing a soft, brown matter which usually stinks, in your language it starts with "c" and ends with "rap"...............................
    I would use that as a brief description of the system shown (and I install about 120 thrusters every year).

  5. wardd
    Joined: Apr 2009
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    Location: usa

    wardd Senior Member

    the first obstacle in the water you hit wouldn't do it much good
  6. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    I wonder how many crab trap warps can dangle off that thing before it tears it's fasteners out.
  7. apex1

    apex1 Guest

    Assuming this is one of the old "Phil Rhodes" designs from the 60ies (build in Holland?), she probably has two engines right? So, you should be fine with a bow thruster only. If you go for a proven system like "Vetus" and "Side power" you must not fear to have maintenance issues.

  8. Wesley
    Joined: May 2010
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    Location: Holland

    Wesley New Member

    Use a bow Thruster

    You`ve seen the comments. better take a bow thruster. While your at it, have a look at the company dutchthrustergroup.com. This is a company specialised is thrusters.:p
  9. Stumble
    Joined: Oct 2008
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    Location: New Orleans

    Stumble Senior Member

    Just to pile on :D

    Those things are more likely to get ripped off than be much help.

    Controlling the stern with two engines is a relatively easy proposition since you have two large engines already for controlling it, the bow on the other hand when caught by the wind can be a problem. If you want a bow thruster then stick with tunnel versions, they really aren't that hard to install.

  10. Tantalus
    Joined: Mar 2010
    Posts: 66
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    Location: Auckland, New Zealand

    Tantalus 1963 kauri cruiser

    Bow thruster

    I've just installed a tunnel bow thruster....anyone trying to turn around and back into a narrow berth in a confined space with a 7.5t timber displacement single screw launch will know exactly what i'm talking about.... these things are not called marriage savers for nothing.
    get one and you will recall sayings about sliced bread etc....
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