Re: RE: One piece prop spars ? ? ?

From: William Gowen <wdgowen_at_gmail.com>
Date: Thu, 9 Jan 2014 21:47:08 -0500

Which is exactly how I make my A6 props.

It's hard for me to imagine ever using a one piece spar. I think my first
LPP in 1999 had a one piece spar but I can't remember any others.
On Jan 9, 2014 7:48 PM, <ykleetx_at_gmail.com> wrote:

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> I only build prop blades separately now. Each spar glued to each blade.
> I then assemble the spars/blades together by gluing them to a balsa hub.
> During this final assembly, I make sure a: the spars are aligned and b:
> the right pitch is set. Here, I do a lot of bending and twisting of the
> spars to get the alignment and pitch I want. It's not the way of the
> craftsman, but I have found that it works better for me than the
> traditional way as shown in the Hobby Shop EZB article.
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> For my light EZB's, I don't use an explicit hub. I overlap the spars by a
> small amount (say .2") and sandwich the prop shaft. The prop shaft has a
> small bend at the end that is sandwiched. This creates a very strong shaft
> to spar joint with a minimum amount of weight. After the glue dries, I
> again bend and twist the spars with the desired amounts.
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Received on Thu Jan 09 2014 - 18:47:10 CET