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Thread: Can I use A DUC Swirl Prop on a Franklin?

  1. #1
    Rooster's Avatar
    Join Date
    Dec 2011
    Location
    Stutterheim, South Africa
    Posts
    145

    Default Can I use A DUC Swirl Prop on a Franklin?

    I recently found a crack in one of the blade collars of my 68 inch 3 blade Warp Drive taper tip propeller!

    It is turned by a Franklin 4A-235-B31 motor producing 116 Hp @ 2800 RPM

    It can run Max continuous power at 2800 RPM, but I generally run it at about 2350 rpm

    The Static RPM
    at my 4000 ft was between 2300 and 2350 depending on the temperatures outside.
    I cruised at about 95kts Indicated.

    This is all on a Kitfox 5 at Max all-up weight of 703 kg.

    Now:
    I have the possibility of buying a 3 blade DUC Swirl carbon prop second hand.
    Can this prop be used in my set-up?


    Many Thanks.
    Reid Wardle
    South Africa

  2. #2
    Super Moderator Av8r3400's Avatar
    Join Date
    Jan 2009
    Location
    Merrill, WI
    Posts
    3,044

    Default Re: Can I use A DUC Swirl Prop on a Franklin?

    This isn't a propeller I'm familiar with, but I would suggest that you contact the manufacturer and ask their advise.

    http://www.duc-helices.com/index.php

    http://www.aircraftspruce.com/catalo...propellers.php
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
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