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jesse(at)saintaviation.co
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 Posted: Wed Mar 14, 2007 12:24 pm Post subject: Aileron, Flap and Wingtip rigging |
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This similar issue has been on the list a LOT lately, so I thought it would
be good to outline the way I rig the wings. For those of you who haven't
done this yet, make note of the problems people think they have before they
hook both ailerons together.
Here goes (again, just my way. YMMV):
The control rods can be set to neutral without the aileron on the wing, just
by the measurement from the bell crank in the wing root and the little jig
in the wing. This doesn't require the aileron and is easiest done with the
wing off the plane, upside down on a table or in a cradle.
Bolt the wing to the plane (it can just be pinned if you are planning to
remove it later), hook up the flaps and rig them together and to the flap
motor so everything works right and they are equally in the up position
(this is a good time to look at how the flaps line up to the wing, as you
can measure the distance from the trailing edge skin to a line on the flaps,
like the spar rivet line), then hook up the aileron and set it with the flap
and adjust the pushrod between the aileron itself and the bellcrank with the
jig at the bellcrank. When this is done, everything in that wing should be
rigged (the wingtip can be done at this time or you can proceed to the other
wing). A spring clamp between the flap and the aileron is a good way to
hold them in neutral.
Do the same thing to the other wing.
Make sure you have connected the control sticks together and that they are
equal (both vertical at the same time, not toed in or out). Hook up the
control rods between the sticks and the wing root. You can do one at a
time, adjusting it to keep the control sticks level (plumb, vertical), with
the clamp still holding the aileron in neutral, which should already have
the outboard bellcrank in neutral and the wing root bellcrank (or whatever
that one is called) in neutral.
When the whole system is connected (you don't necessarily need all of the
washers or nuts on the bolts yet), then you can tighten up all of the jam
nuts on the controls (I use a little bit of locktite on the rod end and the
jam nut, just in case). Then remove the clamps holding the ailerons and
move the ailerons through their full range of movement, making sure there is
no erroneous rubbing anywhere except where the stops are supposed to be (I
don't remember where that is right now, but it should be pretty obvious, and
the stop should be at the same place on both wings). Note that the stop on
one aileron will also be the opposite stop for the other aileron and vice
versa.
Now, you should mount the wingtips to the ailerons to make sure they are
matching the neutral position. If you don't get this right the first time
it can be a pain in the neck to get it to look right and fly right (don't
ask me how I know).
Hope this helps.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com
www.saintaviation.com
Cell: 352-427-0285
Fax: 815-377-3694
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CJohnston(at)popsound.com
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| Posted: Wed Mar 14, 2007 2:47 pm Post subject: Aileron, Flap and Wingtip rigging |
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Thanks everyone for their input. I'm starting to get a clearer picture,
and hopefully mine is ok. Just to put my mind at ease, can someone
who's flying measure the distance from the trailing edge of the flap (up
position) to the trailing edge of the aileron at full down deflection?
I just want to be sure that I'm ok, because fixing a problem here would
be much easier now than later! And I'm a ways off from bolting the
wings on. Pretty please!!!
cj
#40410
fuse
www.perfectlygoodairplane.net
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