Home > VansAirForceForums

- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

Old 01-20-2019, 06:06 PM
Jimbo54 Jimbo54 is offline
Join Date: Feb 2018
Location: Eugene
Posts: 20
Default Wing Removal Basics

I've searched prior posts but can't find what I'm looking for.

True confession: I didn't build my RV-12.

I'm preparing to remove the wings, and cannot find any instructions. There is a nice YouTube showing a couple of gents doing so...looks really easy. But as there is no accompanying audio, I don't want to assume too much.

It appears that all one does is release the 2 safety pins in the cabin, then pull and repeatedly turn until the insertion pins clear the spars. Next, with the help of an assistant, pull the wings away from the plane until cleared of the fuselage.

What concerns me: what about electrical connections and flaperon connections?

Perhaps the builder didn't give me a manual that explains this process. In looking through the building plans, maintenance manual, and operators manual, I thought I'd find some procedural explanation, but cannot find what I'm looking for.

Any guidance for this information would be greatly appreciated.

Thanks in advance. Jim
Reply With Quote
Old 01-20-2019, 07:41 PM
Mich48041 Mich48041 is offline
Join Date: Apr 2008
Location: Riley TWP MI
Posts: 2,857

The person at the wingtip must grasp the handle with one hand and the flaperon with the other hand. The flaperon must be prevented from falling or else its bottom surface may get dented. Pull the wing out only about 6 inches and look at the wing root to see what type of electrical connectors are there. Most RV-12s automatically disconnect the electrical at the wing root. But some might require manual disconnection. Taking the wings off is easy compared to putting them back on. There are other threads dealing with getting the retaining pin holes lined up. HERE is one of them. Do not tighten that pipe expander too much.
Joe Gores
RV-12 Flying
Reply With Quote
Old 01-21-2019, 02:05 AM
Gagarin737's Avatar
Gagarin737 Gagarin737 is offline
Join Date: Mar 2009
Location: Netherlands
Posts: 643

POH chapter 8.6 :

Date: 04/06/18 Revision:6
Removal and installation of the wings requires two people, one to hold the wing at the tip end and the second person to hold the stub end of the wing. The person handling the tip end of the wing must hold the flaperon approximately in trail as it will tend to flip around and possibly become damaged when disengaged from the fuselage.
1. Withdraw each of the fuselage pins only enough to
release the right wing spar.
2. Remove the right wing assembly and set aside.
3. Remove both of the fuselage pins.
4. Remove the left wing and set aside.
Installation procedure is reverse of the removal procedure

I also need a pipe expander to install the pins again and I use the "AirGizmos AC2 Red Plastic/Rubber Cushion Control Surface Gust Lock" to hold the flaperons.

Picasa pictures
Reply With Quote
Old 01-21-2019, 05:29 AM
AZLeeJay AZLeeJay is offline
Join Date: Dec 2013
Location: Phoenix
Posts: 111

I put a soft clamp at the junction of the flaperon and wing before pulling the wing out that way I can have both hands free for carrying and rotating the wing.
Reply With Quote
Old 01-21-2019, 05:58 AM
tomkk's Avatar
tomkk tomkk is offline
Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 836

Originally Posted by AZLeeJay View Post
I put a soft clamp at the junction of the flaperon and wing before pulling the wing out that way I can have both hands free for carrying and rotating the wing.
I take the straight section of a coat hanger and run it through the gap in the wingtip into the corresponding gap in the flaperon to do the same thing. It's also my aileron gust lock.
Port Orange, Fl
RV-12 N121TK ELSA #120845; first flight 06/10/2015
RV-12 N918EN ELSA #120995 Eagles Nest Project; first flight 05/18/2019
SPA Panther N26TK in progress
Reply With Quote
Old 01-21-2019, 02:43 PM
Join Date: Oct 2008
Posts: 112

I use a large spring clamp with cardboard to protect the skin surface.
I clamp at the outboard section of the wing and flaperon. This holds the flaperon in place, aligned with the wing trailing edge. Works just fine.
Reply With Quote
Old 01-21-2019, 04:10 PM
Jimbo54 Jimbo54 is offline
Join Date: Feb 2018
Location: Eugene
Posts: 20
Default Thanks to all...

I think I understand. Appreciate the help. Jim
Reply With Quote
Old 01-22-2019, 09:34 PM
DaveWelch DaveWelch is offline
Join Date: Mar 2005
Location: Huntsville, AL
Posts: 346

As you withdraw each wing, the person supporting the wing tip should try to keep the main spar aligned with it’s slot in the fuselage skin. On my kit the shop heads of large rivets through the main spar stood a bit proud. It took me a while to figure out what was catching the edges of fuse skin at those slots. The wing should slide out easily as the pins are withdrawn. If you feel something catch then stop, mark the high rivet, adjust your position or whatever.
RV12 N951DZ
First Flight 9/23/16!
No paint yet. Working on a scheme with John Deere colors or accents.
Reply With Quote
Old 01-27-2019, 02:25 PM
Charlie12 Charlie12 is offline
Join Date: Oct 2014
Location: Port Orange FL
Posts: 21
Default flaperon position holder

I made a simple device that holds the tip of the flaperon firmly in place when the wing is off. Start with 2 scraps of 2x4 about 6 inches long. Hold one against the end of the flaperon and trace the flaperon trailing edge shape onto the 2x4 so that there is a V-notch about 3 or 4 inches deep. Then saw out the V-notch, and duplicate it on the other 2x4. Pad the inside surface of the notches with felt or heavy cloth so they don't scratch the paint on the flaperon or wing tip. Then use deck screws to screw the two 2x4s together, V-notches aligned, with a sheet of plastic between them. Done!

Insert the V-notches over the trailing edges of the flaperon and wingtip, sliding the sheet of plastic into the gap between the flaperon tip and wingtip so that the fixture can't slide spanwise. Hold it in place by looping a 10-foot nylon strap or bungee forward around the entire wing tip. It is quick and very sturdy. No hand holding needed as you move the wing.
RV-12 #120768, first flight Sept. 2016
180 hrs as of 1/1/2019

Last edited by Charlie12 : 02-11-2019 at 12:57 PM. Reason: typo
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 12:29 AM.

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.