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  #1  
Old 06-23-2012, 04:38 PM
Pmerems's Avatar
Pmerems Pmerems is offline
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 818
Default Tip-up canopy broken-photos needed

Gents,

I was hoping to get a few photos of broken tip-up canopies. Particularly I am looking for photos of those with the aft lower corner broken off. This typically occurs when the canopy was closed improperly. Those who have had this happen typically install a Targa strip to cover the damage.

Here is a sample photo (not my RV-7A). This damage was not from the canopy closing improperly but from being leaned on during maintenance.



Thanks,
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Paul Merems (EAA Tech Counselor, EAA Sheetmetal Workshop Instructor/Volunteer 12 yrs)
ExperimentalAero-HANGAR BANNERS
www.experimentalaero.com
RV-7A (Flying since 2010)/RV-4 (sold 1990)
Tucson, Arizona 85749
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  #2  
Old 06-23-2012, 08:58 PM
mtnflyer mtnflyer is offline
 
Join Date: Jul 2007
Location: granby co
Posts: 180
Default Canopy repair

Run a strip of black plastic tape over the joint between the front and rear sections of the canopy then spray the area with mold release ( do a good job there) then lay a 4 inch wide targa strip. Cover while still wet with ply peel, let this set up, pop this strip off, Trim about a half inch off the front and rear of this strip. Do a good job of cleaning up the forward edge of this strip as now you will bond this strip to the canopy,,,,,after you rough up the area where you will do this bonding,,,,, this will cover that crack and no one will ever sea it. Also, you will have a water tight seal there......good luck. Dave
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  #3  
Old 06-24-2012, 06:25 AM
Alschief Alschief is offline
 
Join Date: Jan 2005
Location: Anderson MO
Posts: 434
Default Canopy Broken

We had the same occurance on our RV12 in that same location.
Added a metal strip.
We used the right stuff to bond it and the existing screws to attach.
Painted it can not tell it was not part of the original design.
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Last edited by Alschief : 06-24-2012 at 06:28 AM.
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  #4  
Old 06-24-2012, 09:59 AM
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Pmerems Pmerems is offline
 
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Location: Tucson, AZ
Posts: 818
Default Photos of broken area

Gents,

I am not looking for how to repair, I am looking for photos of the damage.
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Paul Merems (EAA Tech Counselor, EAA Sheetmetal Workshop Instructor/Volunteer 12 yrs)
ExperimentalAero-HANGAR BANNERS
www.experimentalaero.com
RV-7A (Flying since 2010)/RV-4 (sold 1990)
Tucson, Arizona 85749
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  #5  
Old 06-24-2012, 10:04 AM
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RV7Guy RV7Guy is offline
 
Join Date: Jan 2005
Location: Chandler, AZ
Posts: 2,901
Default Metal

Hi Paul,

I have some templates to make a perfect metal targa strip. Contact me back line. I used Sika to fasten and then blended in to the canopy skirts with glass.

Although glass or carbon can be used, this isn't a bad place to use metal. The potential for inadvertent abuse and damage exists.

Todd's canopies can send you some of the special glue you can repair with until you make the targa strip.
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www.JDair.com
RV-7 N717EE-Flying (Sold)
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  #6  
Old 06-24-2012, 10:05 AM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,344
Default

If you want just to repair it, you can use Weld-on 3 from Tap plastic. With that you will hardly see the crack area and will bond pretty darn good. A friend of mine broke his right where your pix shows and it?s been over three years now and still intact.

If you want to put a Tara strip, which I did (and I did not break any part to be covered) first mark about 1.5? of the TP and scuff really good. You need to scuff this more than usually, then cover the gap and the back side with the packaging tape or other type and wax well. Then layup 4 or 5 layer of fiberglass (I used carbon fiber) and allow room for trimming. Once cured sand to finish and paint, it will look even better than without.
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  #7  
Old 06-24-2012, 05:44 PM
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Jamie Jamie is offline
 
Join Date: Jan 2005
Location: Atlanta, GA
Posts: 2,295
Default

Quote:
Originally Posted by Pmerems View Post
Gents,

I was hoping to get a few photos of broken tip-up canopies. Particularly I am looking for photos of those with the aft lower corner broken off. This typically occurs when the canopy was closed improperly. Those who have had this happen typically install a Targa strip to cover the damage.

Here is a sample photo (not my RV-7A). This damage was not from the canopy closing improperly but from being leaned on during maintenance.



Thanks,
That's my photo of my -7A. I'm assuming that you're thinking of a product for this common break?
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