I agree with you Jim, on the static issue. I also have the same
characteristic on the aileron trim. My tab is 7" and not quite enough. I
added a 6" Flettner strip under the starboard aileron and now have enough
trim tab. It balanced nicely now. I think the wings may be a little off on
incidence but it stalls straight ahead with no wicked tricks. I am now at
118 hours in 11 months. All is running well and I find the Digitak
Autopilot works well.
Ken Carpenter
N9XS mono 914T
----- Original Message -----
From: "James Nelson" <europajim@juno.com>
Subject: Re: Europa-List: Static charges, etc
>
> Right Dave,
> Sometimes the simplest way is best. It easy to get deep in the
> theory and what to do about those things. Just be careful, and keep a
> fire extinguisher about 6 - 10 feet away. Know how to put out a fuel fed
> fire. Have a breeze blowing is good in keeping the vapors away and in
> concentrations to low to burn. Don't get to wrapped up in our
> dissertations and ramblings in the nether world of vapors. I used to
> design and build "gas houses" to fill aerosol cans with propane, iso
> butane and other fine very flammable propellants for our consumers in out
> ever throw away world.
> Have a ball building our fine aeroplane. Got 43 hours on mine so
> I am out of the restrictions and can go most anywhere I want now!! Yea!!
> What a lovely flying bird.. BTW include a 8 to 10" trim tab on one of
> the ailerons to keep things level. Mine is 6" and is not enough to keep
> my starboard wing down. I have to have my tab about an inch up at the
> trailing edge to keep the wings level. I guess I just didn't have my
> wings exactly the same when setting the angle of incidence with the pins.
> Oh well that is what trim tabs are for.
>
> Jim Nelson
> N15JN
>
>
> writes:
> > <davidjoyce@beeb.net>
> >
> > I have followed this discussion with great interest and growing
> > confusion. The only clear messages that I have got out of it are,
> > (1) that routing anything metallic down into the tank simply invites
> > lightning to attack you where it hurts most, and (2) Vapour
> > concentrations down any of the pipes should be high enough to
> > inhibit any fire or explosion.
> > I wonder whether anything proposed improves on my Europa
> > Manual suggestion of grounding absolutely nothing in the fuel
> > system! As far as filling goes I am tempted to think that the
> > simple approach might also be best. By this I mean using a metal
> > jerry can, with bare hands (which will thus automatically be
> > grounded or at least equilibrated with you) and deliberately
> > touching the metal neck of the filler, before removing the cap,
> > which will thus equilibrate with you also, and will pretty much
> > guarantee that you will not get a spark anywhere where there is any
> > possibility of of it igniting anything. David G-XSDJ
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
|