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  1. #1
    Altezza01's Avatar
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    repitching prop O.D.

    just out of curiousity...if you take a 14/20 dynafly out of the box and repitch it up to a 14/22 how much will that effect the outer diameter? would the outer diameter need to be corrected?


  2. #2
    Happily Self-Employed WFO's Avatar
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    yes you will have to re-cut the diameter (if its pitched correctly)

  3. #3
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by Altezza01 View Post
    just out of curiousity...if you take a 14/20 dynafly out of the box and repitch it up to a 14/22 how much will that effect the outer diameter? would the outer diameter need to be corrected?
    The trailing edge of the impeller will not even fit in the wear ring.

  4. #4
    james k's Avatar
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    Yes!!! Jim can recut it for you or just use a file around the outer edge but be accurate..

  5. #5
    Altezza01's Avatar
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    well i'm gonna see if chip will do it. and maybe sling him some cash.

  6. #6
    james k's Avatar
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    Quote Originally Posted by Altezza01 View Post
    well i'm gonna see if chip will do it. and maybe sling him some cash.
    He loves cash I have several files here and i am sure Chip does as well...

  7. #7
    Moderator RX951's Avatar
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    Be sure the trailing edge pitch is what you need. I would go a degree at a time. Just my opinion. I would hate to see you go too far as you can not go back once you machine it because the OD will change when you take material off.
    I know you have the guidance you need in your build, especially with all the GPR experts and gurus on the forum, I'm just throwing out some advice for something I would do when tuning your craft's RPMS' and pitching the dyna-fly.

    ...did I say that correct LOL

  8. #8
    Altezza01's Avatar
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    Quote Originally Posted by RX951 View Post
    Be sure the trailing edge pitch is what you need. I would go a degree at a time. Just my opinion. I would hate to see you go too far as you can not go back once you machine it because the OD will change when you take material off.
    I know you have the guidance you need in your build, especially with all the GPR experts and gurus on the forum, I'm just throwing out some advice for something I would do when tuning your craft's RPMS' and pitching the dyna-fly.

    ...did I say that correct LOL
    i appreciate every bit of info i can get. i've seen chips work and i tell you what....it's top notch. he did some amazing work on flyboys blown pump tunnel.

  9. #9
    Moderator RX951's Avatar
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  10. #10
    miagp21's Avatar
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    Quote Originally Posted by Altezza01 View Post
    i appreciate every bit of info i can get. i've seen chips work and i tell you what....it's top notch. he did some amazing work on flyboys blown pump tunnel.

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