Re: Round prop spars for F1D?

From: Lee Dammann <ldamnann_at_new.rr.com>
Date: Sat, 24 Nov 2007 14:55:24 -0000

Ahhh, now its making sence. .080" spar into a .078" tube. So you
just round the corners a little, not make the hole end round. I was
wondering how you would round off a square and not leave a huge step.

Thanks all
Lee

--- In Indoor_Construction_at_yahoogroups.com, <RLBailey@...> wrote:
>
> Lee
>
> Prop spar size is 0.080" sq tapering to 0.035" sq from about 4.5 lb
wood. Tubes are 0.078" dia formed on brass tube. BTW a square is a
special case of a rectangle.
>
> Bob
>
> ----- Original Message -----
> From: Lee Dammann
> To: Indoor_Construction_at_yahoogroups.com
> Sent: Saturday, November 24, 2007 1:27 AM
> Subject: [Indoor_Construction] Re: Round prop spars for F1D?
>
>
> That sounds like it may be easyier. May I ask what size spar you
use
> for an 18" prop. And what size paper tube do you fit it into.
> Thanks
> Lee
>
> --- In Indoor_Construction_at_yahoogroups.com, <RLBailey@> wrote:
> >
> > Lee
> >
> > I use rectangular spars which are rounded off where they plug
into
> the tubes with no boron. This helps prop flare to go with VP. It
> worked pretty well for me at the European Championships this
year.
> >
> > I abandoned using boron on prop spars some time ago.
> >
> > Bob
> >
> > ----- Original Message -----
> > From: Lee Dammann
> > To: Indoor_Construction_at_yahoogroups.com
> > Sent: Friday, November 23, 2007 3:32 PM
> > Subject: [Indoor_Construction] Round prop spars for F1D?
> >
> >
> > I want to use tissue tubes on props for my F1D. So round spars.
> >
> > What size is everyone using? How many use boron? Two or three
> boron?
> >
> > If you use boron, I assume you have to adjust the size of the
> spar/tube
> > to accomidate.
> >
> > Thanks
> > Lee
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
Received on Sat Nov 24 2007 - 06:55:28 CET