Cavitation check for propeller

Discussion in 'Props' started by sunny09022, Feb 6, 2014.

  1. sunny09022
    Joined: Apr 2013
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    Location: Dhaka

    sunny09022 Junior Member

    How can i check cavitation for my propeller.... if this does not meet then what can i do??
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Are you calculating a propeller or is it an existing installation?
  3. messabout
    Joined: Jan 2006
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    Location: Lakeland Fl USA

    messabout Senior Member

    If you need to know whether the prop is enduring some or a lot of cavitation, then examine it carefully, maybe even with a magnifier glass. Cavitation, if excessive, will cause surface pitting. If the prop looks like it has been sandblasted in some areas, then you have either been running into sand bars or you have some cavitation.
  4. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Sand the prop smooth and paint with a thin coat of primer. Run the boat across a full range of conditions for several minutes, then inspect the prop's painted surface. Cavitation will be obvious.
  5. tom kane
    Joined: Nov 2003
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    Location: Hamilton.New Zealand.

    tom kane Senior Member

    Any trouble from your prop should be reasonably obvious in some way such as poor expected performance,vibration, noise of some sort, over revving intermittently and not getting on to plane quickly. Why should you think there may be cavitation,or more likely air entrainment?

  6. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Don't panic ! :D Probably helps if you provide these helpful gentlemen with more detail of what this prop is, and what kind of boat it is on. :)
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