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Thread: New 447 set cut to 40 mm

  1. #1
    Join Date
    Dec 2010
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    Default New 447 set cut to 40 mm

    I cut these to the wrong dimension for my customer these 47 MM are now cut to 40 MM $118 shipped thanks Chris
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  2. #2
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    Aug 2008
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    How would these compare to originally 40mm props?
    Same diameter, and pitch, but what are the most different other aspects?
    "Look good doin' it"
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  3. #3
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    Jun 2010
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    Mi
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    Quote Originally Posted by Jesse J View Post
    How would these compare to originally 40mm props?
    Same diameter, and pitch, but what are the most different other aspects?
    Not quite. The original props are 47 mm, pitch ratio of 1.4
    The gives them a pitch of 47*1.4 = 65.8 mm
    He then cut them down to 40 mm.
    So, the New effective pitch ratio = 65.8 / 40 = 1.645
    Cheetah, Super Rio, (Mod) Starship (Mod and sold),

  4. #4
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    May 2018
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    TX
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    These would be awesome on a Promarine X2 wish I had the cash to spare on them right now.

  5. #5
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    Quote Originally Posted by larryrose11 View Post
    Not quite. The original props are 47 mm, pitch ratio of 1.4
    The gives them a pitch of 47*1.4 = 65.8 mm
    He then cut them down to 40 mm.
    So, the New effective pitch ratio = 65.8 / 40 = 1.645
    thank you Larry

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