tell-tales on a radial

Discussion in 'Laser Talk' started by rtdanforth, Aug 29, 2006.

  1. rtdanforth

    rtdanforth New Member

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    Any suggestions for where to place the tell-tales on a radial rig? Should they be approximately the same as on a standard rug? (I just purchased a radial sail and lower mast section, but haven't used them yet.)

    Thanks.
     
  2. roshambo

    roshambo New Member

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    "Should they be approximately the same as on a standard rug?"

    I'm not sure where you would put tell tales on a rug... ;^)

    though they definitely would go in about the same place on a standard sail.
     
  3. rtdanforth

    rtdanforth New Member

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    Perhaps a standard "rug" suggests a magic carpet ride, on which tell-tales might be useful . . .

    Sorry about that. I meant standard "rig."

    Is there any reason to think that the air flow over a radial would differ from the air flow over a standard sail?

    Thanks, again.
     
  4. sailor327

    sailor327 New Member

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    it is a bit different due to the radial cut of the sail. but i am not sure in what areas it differs other than smaller measurments.
     
  5. roshambo

    roshambo New Member

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    ha ha
    didn't mean to sound so glib
    airflow should be about the same.
    doa percentage on the full rug & correlate it down to the radial...

    easier yet... eyeball it & go sailing.
     
  6. computeroman2

    computeroman2 Member

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    It doesn't particuarly matter, the airflow changing won't affect where you put them. Make sure you have at least two sets about a foot back from the luff, and a leech tale. I have three leech tales and three sets of two luff tales. when you're doing it, make sure to line the teltales up with the foot, not the luff.
     
  7. tino

    tino New Member

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  8. Merrily

    Merrily Administrator Staff Member

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    Thanks, Tino, that article has a great discussion of boundary layers and separation bubbles. I never understood that before.
     
  9. rtdanforth

    rtdanforth New Member

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    Thanks to all for that helpful information.
     

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