Fin rings???

Discussion in 'The Watering Hole' started by Knuckledragger, Dec 13, 2018.

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  1. Dec 13, 2018 #1

    Knuckledragger

    Knuckledragger

    Knuckledragger

    TLAR Engineering hack

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    Is there an effective ratio to the body where they no longer are effective?
     
  2. Dec 13, 2018 #2

    dhbarr

    dhbarr

    dhbarr

    Amateur Professional TRF Supporter

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    I'm guessing you mean tube fins here, and are asking about if they get too long.

    If I've guessed correctly the answer is yes, you can make them so long they become just more body tube.

    If you want to go fast, keep them shorter than their diameter. If you want to go slow, put them at 1.5-2x their diameter.
     
  3. Dec 15, 2018 #3

    Knuckledragger

    Knuckledragger

    Knuckledragger

    TLAR Engineering hack

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    Thank you. Yeah, sleep deprivation leads to some interesting conversations! Just found the Apogee newsletter 335 and will continue to explore that vein. Thanks for taking the time to share
     
  4. Dec 15, 2018 #4

    dhbarr

    dhbarr

    dhbarr

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    Also check out the Larry Brand articles referenced in that newsletter, great stuff.
     

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