VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-14
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 12-28-2018, 09:35 AM
bkervaski's Avatar
bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,262
Default

Quote:
I wonder if humid weather causes proseal to be sticker?
Think "tacky" not really "sticky". That canopy front skin is thin, it doesn't take much to hold it in place while the act of raising the canopy shoves it into proseal that shouldn't be there.

It only takes a fraction of a second to happen and, after opening it a hundred times without issue, you don't really feel the need to baby it.

Once the canopy forward edge comes in contact with the proseal, any upward movement applies forward pressure and keeps it in place and it will start bending until you get the dreaded "pop".

It's probably only ever going to be an issue on the top middle where the canopy skin is easily bendable.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy

Last edited by bkervaski : 12-28-2018 at 10:37 AM.
Reply With Quote
  #22  
Old 01-07-2019, 10:01 AM
bkervaski's Avatar
bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,262
Default

Just a quick follow up to this post ... I removed the QB seal, wasn't terrible to remove just a bit time consuming. Some masking tape and new razor blades are all that was needed. The rib holes that were filled from below cut clean so no issues there, turned out good.

Once removed the bare aluminum will need to be prepped and painted.

I *highly* recommend everyone check this on their build, it will happen to you if there is sealant up top, just a matter of time.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy

Last edited by bkervaski : 01-07-2019 at 10:11 AM.
Reply With Quote
  #23  
Old 01-07-2019, 11:55 AM
azflyer21 azflyer21 is offline
 
Join Date: Nov 2016
Location: Scottsdale AZ
Posts: 171
Default

Would you happen to have pictures of before/after you removed the sealant? I have a QB Fuse and want to make sure I understand exactly the issue, thanks.
__________________
Kevin Lippert
Zenith 750 completed 2016 -
Sold

N1402 reserved
RV-14a Empennage Done
QB Wing QB Fuse inprogress
Build Log
New Build Log
Reply With Quote
  #24  
Old 01-07-2019, 12:01 PM
bkervaski's Avatar
bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,262
Default

Quote:
Would you happen to have pictures of before/after you removed the sealant? I have a QB Fuse and want to make sure I understand exactly the issue, thanks.
Will do, next time I'm at the hangar I'll grab pics.

If you don't mind, post a pic of yours.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
Reply With Quote
  #25  
Old 01-08-2019, 04:04 PM
azflyer21 azflyer21 is offline
 
Join Date: Nov 2016
Location: Scottsdale AZ
Posts: 171
Default

Here is a pic of the proseal on the QB fuse. Will I need to trim?

__________________
Kevin Lippert
Zenith 750 completed 2016 -
Sold

N1402 reserved
RV-14a Empennage Done
QB Wing QB Fuse inprogress
Build Log
New Build Log
Reply With Quote
  #26  
Old 01-08-2019, 05:00 PM
bkervaski's Avatar
bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,262
Default

Quote:
Here is a pic of the proseal on the QB fuse. Will I need to trim?
My recommendation is to pull the seal off and re-do it per the manual, there shouldn't be any sealant on top. Take a look at my pic in post 19, note only the shaded areas have sealant. Yours is how mine was, the canopy has a chance of grabbing and bending under.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy

Last edited by bkervaski : 01-08-2019 at 05:10 PM.
Reply With Quote
  #27  
Old 01-08-2019, 05:36 PM
azflyer21 azflyer21 is offline
 
Join Date: Nov 2016
Location: Scottsdale AZ
Posts: 171
Default

I see now, thanks for your help.
__________________
Kevin Lippert
Zenith 750 completed 2016 -
Sold

N1402 reserved
RV-14a Empennage Done
QB Wing QB Fuse inprogress
Build Log
New Build Log
Reply With Quote
  #28  
Old 01-08-2019, 06:00 PM
MED MED is offline
 
Join Date: Jul 2015
Location: Aiken, SC
Posts: 428
Default

Does anyone have a photo of what the seal area should look like? Many of us have QB fuselages with seals that look like the photo in post 25. Before randomly removing seal material, it would be helpful to know what we are trying to achieve.
__________________
MED
140236
N435MD
Reply With Quote
  #29  
Old 01-08-2019, 11:24 PM
control control is offline
 
Join Date: Feb 2006
Location: Stockholm, Sweden
Posts: 708
Default

The problem is that when you perform step1 (se post #19) during placement the top skin, you will most likely get some sealant on the top.

So even with a slow build, I have to go out and verify that I have no sealant in the dangerous area, probably some cleanup. I will get a picture of how it looks on my AC (not that I am a authority on how it should look )
__________________
RV-14 kit #140138
Flight testing
Http://magnusrv.blogspot.se
Reply With Quote
  #30  
Old 01-09-2019, 07:09 AM
bkervaski's Avatar
bkervaski bkervaski is offline
 
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 1,262
Default

Quote:
The problem is that when you perform step1 (se post #19) during placement the top skin, you will most likely get some sealant on the top.
It appears that the QB folks place a large excessive bead of sealant over this entire area afterwards so it forms a slope like the red line in my diagram on post 19, basically forming a ramp for which the front skin can grab.

When I removed that there is still sealant in the required areas and it separated cleanly like the final sealant was applied afterwards.

I'll get pics next time I'm at the hangar.
__________________
RV-14A #140376
N196 (Flying)
2019 Bronze Lindy
Reply With Quote
Reply


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 07:45 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.