Author: "svanarts" <svanarts@...> Time: Mon Nov 18, 2002 1:56 pm PST Link
Got a question for you experienced builders out there. I'm trying to
rig my ailerons right now. Can someone give me some pointers or
better yet the definitive guide to rigging the ailerons? Seems like
every time I move something on one aileron it messes up something
else on the other. Help!
Author: "Jeff Hall" <jhallrv4@...> Time: Mon Nov 18, 2002 4:58 pm PST Link
--- In RV-4@y..., "svanarts" <svanarts@y...> wrote:
> Got a question for you experienced builders out there. I'm trying
to
> rig my ailerons right now. Can someone give me some pointers or
> better yet the definitive guide to rigging the ailerons? Seems
like
> every time I move something on one aileron it messes up something
> else on the other. Help!
As I recall, there should be a hole drilled in the aileron bellcrank
that you can put a 1/8" drillbit through to hold the bellcrank in
the neutral position. Then clamp the trailing edge of the aileron in
neutral position in relation to the flap trailing edge and the
wingtip trailing edge. THEN you adjust the pushrod rod end bearings
to fit. Can't miss, unless the pushrods are incorrect lengths, but
that will be obvious. REMEMBER to make sure that if a locknut
loosens, and the pushrod rotates, it cannot rotate far enough to
unscrew itself out of a rod end bearing.
Jeff
Author: "staar" <staar@...> Time: Tue Nov 19, 2002 4:48 am PST Link
It's not really difficult, the basics are to Jig or align the ailerons with the wing, the kit gave you a template drawn on the inside of the lid of your wing kit. I tape them in place when I have them aligned. Put all rod end bearings in the middle of their range, install the rods from the aileron to the bellcrank, that will set the basic position for the bellcrank. Put your stick in what ever position that you think is vertical and adjust the push pull tube rod ends to fit between the bellcranks and the stick. If you run out of adjustment you shorten or lengthen the aileron to bellcrank rods to hopefully compensate. I have had to cut the push pull tube and re install the end on one of the RV"s that I helped finish. Make sure you have enough thread engaged into the ends of the push pull tubes, at least 1/4 inch and make sure that all have a lock nut and torque stripe them when you tighten them. Take into account that the rod ends are 90deg to each other. Most all of the RV's I have been involved with needed to have the hole in the rear spar opened to allow for enough side and vertical movement. Also when both ailerons are aligned, both bellcranks should be in relatively the same position, don't go crazy on this, but with in a 1/4 inch or so.
Have fun, hope it helps even just a little.
----- Original Message -----
From: svanarts
To: RV-4@yahoogroups.com
Sent: Monday, November 18, 2002 1:56 PM
Subject: [RV-4] Rigging ailerons
Got a question for you experienced builders out there. I'm trying to
rig my ailerons right now. Can someone give me some pointers or
better yet the definitive guide to rigging the ailerons? Seems like
every time I move something on one aileron it messes up something
else on the other. Help!
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Author: "Brent Travis" <btravis@...> Time: Tue Nov 19, 2002 10:01 am PST Link
There was an article in the RVator many years ago about rigging the ailerons using the tooling holes in the end rib of the aileron. It was written by the guy that won (if I recall correctly) a Grand Champion homebuilt at Oshkosh. I think it is included in the articles in the 12 (or 18, or 22 or whatever it is now) Years of the RVator.
The way I did it was to lock the aileron bellcranks in the neutral position as shown on the plans by drilling a # 30 hole with a long drill bit all the way through both aileron bellcrank support angles and the bellcrank and then leaving the bit in the holes when I wanted the bellcrank locked. I think this is mentioned in the plans. Then I lined up the tooling holes in the aileron with the tooling holes on the end rib of the wing.
I tried the template method in the plans, but I didn't think it would be that accurate due to the ribs not being exactly the same as what I cut out.
It is important to get the bellcrank close to the neutral position when the ailerons are in neutral because the bellcrank is set up to give different motions for up and down. This is what gives the RV the very low adverse yaw when doing those slow rolls! If the bellcrank starts out in the wrong position at neutral it may not work as well.
Just take your time to get it right and it will work fine.
Brent
----- Original Message -----
From: svanarts
To: RV-4@yahoogroups.com
Sent: Monday, November 18, 2002 1:56 PM
Subject: [RV-4] Rigging ailerons
Got a question for you experienced builders out there. I'm trying to
rig my ailerons right now. Can someone give me some pointers or
better yet the definitive guide to rigging the ailerons? Seems like
every time I move something on one aileron it messes up something
else on the other. Help!
To unsubscribe from this group, send an email to:
RV-4-unsubscribe@egroups.com
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]
Author: "svanarts" <svanarts@...> Time: Tue Nov 19, 2002 2:58 pm PST Link
Thanks for all the helpful suggestions. I'll give them a go this
weekend!
Author: "svanarts" <svanarts@...> Time: Tue Nov 19, 2002 2:59 pm PST Link
Forgot to thank you guys for not yelling at me to check the archives
first! :-)