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  #1  
Old 10-21-2017, 08:41 PM
ronschreck's Avatar
ronschreck ronschreck is offline
 
Join Date: Mar 2006
Location: Gold Hill Airpark (NC25), NC
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Default Cracked canopy! WTB a new one.

Looks like I'll be down for awhile. Is there a source for tinted RV-8 canopies? Or does someone have one I can purchase?

Don't know why this happened. The canopy has served me well for 2150 hours and all kinds of abuse. It cracked on a 75-degree day. Go figure!


Canopy Crack by Ron Schreck, on Flickr
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Ron Schreck
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RV-8, "Miss Izzy", 2200+ RV Hours
Track Me *** Gold Hill Airpark (NC25)
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  #2  
Old 10-21-2017, 08:58 PM
snoop9erdog snoop9erdog is offline
 
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Posts: 257
Default G's

Probably some dem g forces
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  #3  
Old 10-21-2017, 09:14 PM
SHIPCHIEF SHIPCHIEF is offline
 
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Location: Seattle
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Fix it NOW!
1) Use a cut off wheel to extend the crack all the way to the other side (so it doesn't go off in some other crazy direction).
2) Cover it with Sikaflex and an aluminum Targa stripe.
-Roll the aluminum strip in a slip roller to get the perfect cone shape and curve. Once you get it where it will lay in place, tape the SIKA boundary.
- apply the Sika & Targa strip. Push the Targa strip down into place until the SIKA is coming out the edges with no voids, and the join is slim.
-Then pull the tape with the pushed out Sika on it.
Looks good, lasts a long time.
https://www.harborfreight.com/30-inc...roll-5907.html (the top part)
http://www.jettools.com/us/en/p/sr-2...ip-roll/756020 (better graphic)
That will buy you time. You can still fly while you gather parts and get ready.
Mine cracked in the same spot, I did the Targa, and it looks good enough to keep.
I saw it first on an RV-4, they crack in the same spot.
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Last edited by SHIPCHIEF : 10-21-2017 at 09:20 PM.
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  #4  
Old 10-21-2017, 09:55 PM
VA Maule VA Maule is offline
 
Join Date: Apr 2016
Location: Bucking ham, Virginia
Posts: 187
Default Patch job

Assume you had a safe uneventful flight home. Did the patch job hold up adequately?
If you find a tented one let me know as I'm on the lookout for one as well.
Hopefully will see you up here next year.
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  #5  
Old 10-22-2017, 04:11 AM
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ronschreck ronschreck is offline
 
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Location: Gold Hill Airpark (NC25), NC
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Quote:
Originally Posted by VA Maule View Post
Assume you had a safe uneventful flight home. Did the patch job hold up adequately?
If you find a tented one let me know as I'm on the lookout for one as well.
Hopefully will see you up here next year.
Morgan, thanks for the help. The patch held up nicely.

Scott, I have decided to take this opportunity to replace the canopy, rebuild the engine which has 2150 hours on it and repaint the whole airplane. It will be a long winter!
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RV-8, "Miss Izzy", 2200+ RV Hours
Track Me *** Gold Hill Airpark (NC25)
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"Flying makes me feel like a sex maniac in a whorehouse with a stack of $20 bills." Pancho Barnes
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  #6  
Old 10-22-2017, 06:04 AM
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mike newall mike newall is offline
 
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Location: Yorkshire, England
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I sometimes wonder why guys who are unfortunate to crack canopies don't turn to the vintage and antique fellas for help.

Most of the warbird community have canopies and plexi repaired, filled and polished clear all the time. I remember seeing a plexi dome on a bomber being restored - it was in 5 or 6 pieces. After a couple of weeks work, you could not tell it was anything other than new.

We are tending to lose the old skills and methodology - my first thought with most things in maintenance is how do I repair it, not how do I replace it.

Obviously, there are caveats to all things, but it would be worth us as a community exploring repairs as they will always keep cropping up.

Dan H - any thoughts from you as a composite guru ?
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  #7  
Old 10-22-2017, 06:51 AM
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ronschreck ronschreck is offline
 
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Quote:
Originally Posted by mike newall View Post
I sometimes wonder why guys who are unfortunate to crack canopies don't turn to the vintage and antique fellas for help.

Most of the warbird community have canopies and plexi repaired, filled and polished clear all the time. I remember seeing a plexi dome on a bomber being restored - it was in 5 or 6 pieces. After a couple of weeks work, you could not tell it was anything other than new.

We are tending to lose the old skills and methodology - my first thought with most things in maintenance is how do I repair it, not how do I replace it.

Obviously, there are caveats to all things, but it would be worth us as a community exploring repairs as they will always keep cropping up.

Dan H - any thoughts from you as a composite guru ?
Appreciate your comments but I fear mine is beyond repair. It's really a nasty crack. I'm going to take this opportunity to ground the plane for the winter, install ADS-B Out, refurbish the interior, rebuild the 2150 hour engine and repaint the airplane. I would like to find a tinted canopy for the plane. Does anyone have contact info for Todd's Canopies? Are they still in business?
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Ron Schreck
IAC Director and National Judge
RV-8, "Miss Izzy", 2200+ RV Hours
Track Me *** Gold Hill Airpark (NC25)
VAF 2020 Donor
"Flying makes me feel like a sex maniac in a whorehouse with a stack of $20 bills." Pancho Barnes
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  #8  
Old 10-22-2017, 07:21 AM
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mike newall mike newall is offline
 
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Hey Ron,

Yep, yours looks pretty terminal but I thought the thread grab was worth broaching the subject

Sadly, Todd is not with us any more, but you may look here.

http://www.vansairforce.com/communit...=130229&page=3
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  #9  
Old 10-22-2017, 08:27 AM
Scott Hersha Scott Hersha is online now
 
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Location: Cincinnati, OH
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Ron,
Is there a rivet at the bottom of that crack? I'll bet there is...... I shoulda used Sika Flex......
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  #10  
Old 10-22-2017, 09:51 AM
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ronschreck ronschreck is offline
 
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Quote:
Originally Posted by Scott Hersha View Post
Ron,
Is there a rivet at the bottom of that crack? I'll bet there is...... I shoulda used Sika Flex......
Your's was installed with professional guidance. Mine was done by an amateur eleven years ago!
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Ron Schreck
IAC Director and National Judge
RV-8, "Miss Izzy", 2200+ RV Hours
Track Me *** Gold Hill Airpark (NC25)
VAF 2020 Donor
"Flying makes me feel like a sex maniac in a whorehouse with a stack of $20 bills." Pancho Barnes
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