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Old Jan 27, 2013, 07:50 PM
Registered User
USA, OR, Grants Pass
Joined May 2010
23 Posts
Question
Can a propeller be shortened

I have never heard or read anything on this subject matter before, so maybe it is something that should not be done. I would like to know if a propeller could be cut a little off the tips to better suit an engine requirement and also get better ground clearance.
A little background on why I am asking, I am putting a Mintor 22 cc gas engine on a Four-Star 120 that I am building. The recommended size prop for the Mintor is 17 X 6 to 17 X 8. I happen to have a couple new Top-Flite Power Point 18 X 6 props that I picked up real cheap at an estate sale. I believe I would not have enough ground clearance for my 4 Star with these props. Looking at the props, it would be very easy to take 1/2" off each tip to make them 17" long. They could be balanced afterward. I'll attach a picture of a prop, and where I propose on making a cut. To me that little bit removed from the tips should not effect the properties of the prop very much. Thanks for any opinions and advice.

Lamar
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Old Jan 27, 2013, 07:54 PM
Registered User
United States, IL, Peoria
Joined May 2003
766 Posts
Just make sure to cut with a Zona saw or other fine cut so it won't splinter, then coat with some nail polish or epoxy (just a little soak in) to waterproof it. I do it to broken tipped Xoar's all the time.
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Old Jan 27, 2013, 08:29 PM
Registered User
USA, OR, Grants Pass
Joined May 2010
23 Posts
Thanks for the reply back. I just realized that probably posted in the wrong category. This is electric power talk.
Lamar
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