New 447 set cut to 40 mm

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  • dasboata
    Fast Electric Addict!
    • Dec 2010
    • 3152

    #1

    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
    Attached Files
  • Jesse J
    scale FE racer
    • Aug 2008
    • 7116

    #2
    How would these compare to originally 40mm props?
    Same diameter, and pitch, but what are the most different other aspects?
    "Look good doin' it"
    See the fleet

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    • larryrose11
      Senior Member
      • Jun 2010
      • 757

      #3
      Originally posted by Jesse J
      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),

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      • Mike W
        Senior Member
        • May 2018
        • 348

        #4
        These would be awesome on a Promarine X2 wish I had the cash to spare on them right now.
        Otto RC Marine

        Comment

        • dasboata
          Fast Electric Addict!
          • Dec 2010
          • 3152

          #5
          Originally posted by larryrose11
          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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