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Old 12-17-2011 | 10:47 PM
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Default Repairing a Airplane wing

Ok well first off im new to Rc Airplanes and will be taking a flying course here soon.
Now i got ahold of a nitro traininer and the wing has a few breaks and dings. Now how would i go about fixing this?
Please send help

pictures attached!
Thanks<br type="_moz" />
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Old 12-17-2011 | 11:05 PM
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Default RE: Repairing a Airplane wing

It's obviously been repaired several times in the past. First, you need to determine if those prior repairs seem mechanically sound.

The missing chunks of rib can just have scrap balsa glued on the sides to fill in, then kinda match that scraps profile to one of the still good ones.

From the pics, the only repairs, other than recovering it, are the missing rib chunks.

The trashcan at the local flying field is usually a good source of scrap balsa to make repairs with. People are always stuffing their wrecked remains in the trash. Even the worst crashed ARF will have enough small bits of balsa to make the kind of repair this wing needs
Old 12-18-2011 | 04:00 AM
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Default RE: Repairing a Airplane wing

From the pictures, its hard to tell if the front half of the wing was sheeted (from the spar to the leading edge). Many trainer wings are because it adds a lot of strength to the leading part of the wing. If the strip on the top is raised above the rib edge, thats usually a clue that it should be sheeted. Sheeting takes a little more time, but isn't difficult. Rather than trying to type out a full description, you can probably find lots of help by doing a search on wing sheeting.

Brad
Old 12-18-2011 | 06:27 AM
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Default RE: Repairing a Airplane wing

I agree with cutaway on the rib repair, add a servo ( second picture), nad before covering, remove all the covering and sand! Looks like it has been recovered at least three times. I dont believe the leading edge has ever been sheeted on this particular wing, the wood at the leading edge of the ribs would be thicker to accomodate the thickness of the sheeting. sounds like your doing the right thing by being trained, good luck with the repair!
Old 12-18-2011 | 06:30 AM
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Default RE: Repairing a Airplane wing

How is the rest of the plane? Any Pictures.
Old 12-18-2011 | 07:05 AM
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Default RE: Repairing a Airplane wing

Simple to fix those ribs.  First get some 3 by 5 card stock and put next to the good rib.  Carve off those gobs of glue on the LE and fit your car stock in, then trace the front of the rib.

Cut some 1/2 ribs out of the appropriate width of balsa.  Use these to replace the badly cracked or broken ribs.  I recommend sawing off the old rib about 1/2" out from the spar and gluing the replacement to this and the leading edge.

Voila,  Strong and light.  Looks fine.

Tom
Old 12-18-2011 | 07:40 AM
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Default RE: Repairing a Airplane wing

Two articles about wing repair:

http://www.rcuniverse.com/magazine/a...article_id=998

http://masportaviator.com/2005/10/06/arf-wing-repair/

Very important: do a lateral balance after you finish your repair and covering:

http://masportaviator.com/2006/09/05...up-part-three/
Old 12-18-2011 | 07:41 AM
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Default RE: Repairing a Airplane wing

Andrew.Evey -

A few years ago I wrote an article that's in the RCU magazine section called [link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=910]How to: Wing Repair[/link]. It came about from some repairs I did to an Alpha 60, and may be of interest to you before you start repairing your wing.

Hogflyer
Old 12-18-2011 | 01:25 PM
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Default RE: Repairing a Airplane wing


ORIGINAL: goirish

How is the rest of the plane? Any Pictures.
Thanks for all the help and ill be taking all advise as i can since im new to the Airplanes.
Now im posting some photos of my Airplane for the few of you who wanted to see and if ya see anything that looks wrong Please let me know.
Other then that Thanks for all the help guys!


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Old 12-18-2011 | 05:47 PM
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Default RE: Repairing a Airplane wing

Here are a few more pictures of the plane.
Its a project in the works but will hopfully be getting trained on this palne this spring.
Let me know what ya think and if ya have anything to share that would be awesome!
I know this plane has been flown before and has been rebuilt. ask the orginal owner.
But no major crashes.
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Old 12-18-2011 | 05:48 PM
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Default RE: Repairing a Airplane wing

more pictures
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Old 12-20-2011 | 02:41 PM
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Default RE: Repairing a Airplane wing

From the looks of things you're primarily looking at a recovering job.

That is not terribly difficult, but it may be something out of reach for a novice.

You have two choices IMHO...

1. - Find a local club and get a more experienced member to help you.

2. - Put the airframe aside, pull the components and put them into a new airframe.


Everything you have looks superficially OK, and a new airframe will set you back around $150.00.

If you are not experienced fixing this stuff, you can waste a lot of time and money learning ( not that this is a bad idea in the long run... ).


I approach it from a "am I better off fixing it, or working the hours it would take for me to buy a new airframe" view.

What is your take on that? That may guide your choice.

Old 12-21-2011 | 10:51 AM
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Default RE: Repairing a Airplane wing

From the pics, that appears to be a Goldberg Eagle trainer. If you PM me with your e-mail address, I can forward a pdf of the assembly manual, that may help you in repairing and setting up the plane.
Old 12-21-2011 | 12:59 PM
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Default RE: Repairing a Airplane wing


ORIGINAL: cutaway

It's obviously been repaired several times in the past.
honestly i don't see any repairs at all in those pics. it's well weathered but as long as the glue joints are solid it just needs a little sanding and recovering, the broke ribs are at the tip and truth be known can even be ignored on this airframe.

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