Let it rub for now. When applying the top skin, you can use mixing
sticks to provide space between the aileron and the closeout. Any
subsequent rubbing can be handled by removing a bit of the trailing
edge of the closeout.
I trimmed mine back and thought all was well. Then when it came time
to bond the top on I found I did not have enough bonding area and the
top skin was not firmly on in places. (Inspection was done with a
small "lipstick" TV camera placed in the wing through the access
panels.) I ended up having to cut more access panels, apply more
epoxy/glass and adhesive through them, reinforce the panel edges, and
reinstall the skin cutouts. A royal pain.
David
On 3/21/06, Andrew Sarangan <asarangan@yahoo.com> wrote:
>
> OK, I figured out where the aileron is getting snagged. It is rubbing
> against the top surface of the aileron closeout (which is on the
> trailing edge of the wing) throughout its entire range of motion. This
> is what is restricting its max travel to 20-degrees. I can even see
> where this rubbing pressure has even lifted portions of the closeout
> skin that used to be bonded to the sides at the root end of this
> closeout.
>
> One solution is to trim about 5mm from the closeout's upper lip.
> However, I am not sure if this will cause any problems when bonding the
> top skin on. Any ideas are appreciated.
>
>
> --- Andrew Sarangan <asarangan@yahoo.com> wrote:
>
> > <asarangan@yahoo.com>
> >
> > Jeremy,
> >
> > That is exactly right. I am referring to the deflection without the
> > pushrods attached.
> >
> > The gap between the hinged surfaces is more than the 1.5mm called for
> > in the manual; however, I have not checked whether that's where the
> > deflection is being restricted.
> > I am assuming the neutral position (zero-degrees) to be when the
> > aileron is aligned with the trailing edge of the wingtip. I think
> > that
> > makes sense because that would make the most streamlined situation to
> > be zero-degrees.
> >
> >
> >
> >
> > --- Jeremy Davey <europaflyer_3@msn.com> wrote:
> >
> > > <europaflyer_3@msn.com>
> > >
> > > I think what Andrew's saying is not that the pushrods won't allow
> > him
> > > the
> > > movement, but that the aileron is fouling on the wing when he tries
> > > to get
> > > up deflection with the pushrods disconnected.
> > >
> > > Andrew, it sounds to me like you need to check the following:
> > >
> > > 1) the positioning of your hinges - are they too close in?
> > > 2) your start point for zero degrees deflection - are you starting
> > > from a
> > > few degrees out?
> > >
> > > I hope this helps.
> > >
> > > Kind regards,
> > > Jeremy
> > >
> > > Jeremy Davey
> > > Europa Monowheel 537M G-EZZA
> > > Europa Club Vice-Chairman, Webmaster, PFA NC Representative
> > > PFA EC Member
> > > "If you can keep your head when all about you are losing theirs,
> > then
> > > it is
> > > possible you haven't grasped the severity of the situation."
> > > Tail done
> > > Standard XS wings with mods underway
> > > CM installed in fuse (with airbrakes fittings)
> > > 1430 build hours to date, build currently stalled due to house
> > moves
> > > and
> > > lack of workshop
> > > Intended fit:
> > > Rotax 914 turbo, Airmaster CS fully-feathering prop
> > > Lots of lights, buttons, switches, gizmos, and alarms
> > >
> >
> >
> > Andrew Sarangan
> > http://www.sarangan.org
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> Andrew Sarangan
> http://www.sarangan.org
>
>
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