Page 2 of 2 FirstFirst 12
Results 11 to 16 of 16

Thread: Czech Mate

  1. #11

    Default Re: Czech Mate

    Quote Originally Posted by Plane Nuts View Post
    Let me expand on my reply. When a propeller that is too large is fitted to an airplane the blades are shortened with a straight cut because it is simple and costs less not for efficiency. Attached is a photo of a CNC profiled blade on Precious Metal which gave a 56 MPH increase in speed.
    Czech Mate had squared off Aero Products hollow steel blades. Therefore profiling the ends would have been not possible.
    John Slack

  2. #12
    Join Date
    Feb 2009
    Location
    Napa, CA
    Posts
    185

    Default Re: Czech Mate

    Quote Originally Posted by BellCobraIV View Post
    Czech Mate had squared off Aero Products hollow steel blades. Therefore profiling the ends would have been not possible.
    Thank you for your answer. So that brings more questions to mind, once the hollow blades were shortened how were the ends closed off and how much was removed from the blades?

  3. #13
    Join Date
    Oct 2005
    Location
    Auburn, CA
    Posts
    190

    Default Re: Czech Mate

    [

    I just measured one of the tips that was removed. It is 14.25" tall. The cord at the cut is 12.5" The holes to fill are a tick more than 3/8 "
    Larry Klassen told me that he braised the ends to fill them.


    QUOTE=Plane Nuts;147337]Thank you for your answer. So that brings more questions to mind, once the hollow blades were shortened how were the ends closed off and how much was removed from the blades?[/QUOTE]

  4. #14
    Join Date
    Sep 2004
    Location
    Reno
    Posts
    513

    Default Re: Czech Mate

    That's fantastic, Leo! Well done!
    Tony

  5. #15
    Join Date
    Feb 2009
    Location
    Napa, CA
    Posts
    185

    Default Re: Czech Mate

    Quote Originally Posted by TWD View Post
    [

    I just measured one of the tips that was removed. It is 14.25" tall. The cord at the cut is 12.5" The holes to fill are a tick more than 3/8 "
    Larry Klassen told me that he braised the ends to fill them.


    QUOTE=Plane Nuts;147337]Thank you for your answer. So that brings more questions to mind, once the hollow blades were shortened how were the ends closed off and how much was removed from the blades?
    [/QUOTE]

    Thank you for your answer. As a mechanic and gearhead I like to know how mods are done.

  6. #16
    Join Date
    Aug 2002
    Location
    Reno, Nevada
    Posts
    2,828

    Default Re: Czech Mate

    Hello Deepsky! I have #8 in the que (you said it would be near impossible for me, my son agrees, so, a challenge). Cobra ii is almost finished, then #8 then Vicki's purple mustang.
    Leo Smiley - Graphics and Fine Arts
    airplanenutleo@gmail.com
    thetreasuredpeacock.etsy.com

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •