wooden prop balance?

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G.Dawes
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wooden prop balance?

Post by G.Dawes » Tue May 27, 2014 9:43 pm

What is the maximum difference of blade weights in grams should be allowable on a manufactured wood prop before it needs to be worked on. I know it should be exact but it is not and it is not damaged in any way. what are the parameters that a commercial prop is made to ??? Paint the tips is very fine weight difference but what if more is needed ?
Graham Dawes
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tnowak
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Re: wooden prop balance?

Post by tnowak » Wed May 28, 2014 8:43 am

Give Rupert Wasey a call at Hercules propellers.
He is very helpful and has propeller balancing equipment.

Tony Nowak
Tony Nowak
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jangiolini
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Re: wooden prop balance?

Post by jangiolini » Mon Jun 09, 2014 6:32 pm

It would sound like you have got water into the heavy blade!!! what make is it, is it ground adjustable? how accurate are your scales? I usually balance my props by making a top hat insert to fit the center hole and place a strong cord through it to suspend it. usually just a spray of paint to balance it. if it has become unbalanced then something has changed!!Have you put tape on it or repaired it? sorry just rambling thoughts!
Regards John.
John Angiolini
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phil brookman
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Re: wooden prop balance?

Post by phil brookman » Fri Nov 14, 2014 8:03 am

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Gerry Holland
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Location: White Ox Mead, Bath, Somerset

Re: wooden prop balance?

Post by Gerry Holland » Fri Nov 14, 2014 8:26 am

If in doubt on balance of Prop then call Rupert at Hercules Props and arrange for check and overhaul of Prop.
I can recommend as I have sent two Props in his direction, an EVRA and Flottorp. Both came back beautifully finished with Certificate of Conformance if required for LAA Paperwork.
The Flottorp was probably ex-WW2 (1943) and is now attached to an A65 and is a perfect match.
The EVRA is on a Jodel with C90.
Regards
Gerry
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