VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #1  
Old 01-31-2018, 01:48 PM
Antoine MTA Antoine MTA is offline
 
Join Date: Jan 2017
Location: France
Posts: 1
Default QB Wings - Skin riveting issues

Hello VAF.

I started to rivet the last wings skin on my 8 : bottom outboard skin. Wings are QB.

I started riveting like asked in the manual, beginning at the rear spar on the inboard rib and working in an L pattern.
Before riveting the skin to the main spar, I moved to the next bay and I checked everything else still aligns.

And there is the problem, I have an offset between the skin holes common to the main spar. I have installed 100% clecos on this line of holes to see what happen. Clecos are difficult to instal and the skin doesnít align with the main spar.

The offset is about 1/32. But itís not possible to put the rivet in the hole. The dimple countersunk skin hole do not match perfectly in the machine countersunk spar hole.

The wings are QB so the spar were already machine countersunk. When I final drill the skins I noticed this little offset, but I didnít final drill the holes common to the skin and the main spar as the main spar was already machine countersunk. I final drill these skin holes with a reamer after removing the skin from the wing.

Left wing have the same problem but not yet started to rivet.

I've no ideas to fix the problem, what would be your advice to me ? Does anyone encounter same problem or similar with QB Wings ?

Thanks for you help.

Antoine
Young French RV8 Builder



Link to photo

https://photos.app.goo.gl/Cxv1j3MJPlPl1nhC2

Last edited by Antoine MTA : 01-31-2018 at 01:53 PM. Reason: Adding link for the photo
Reply With Quote
  #2  
Old 01-31-2018, 08:54 PM
VA Maule VA Maule is offline
 
Join Date: Apr 2016
Location: Bucking ham, Virginia
Posts: 71
Default Wing skin

I recently completed my slow build wings and had the same issue . After much head scratching & beer drinking. I used several 1500 watt work lights as spot heaters for warming part of the skin to make a drastic but temporary thermal expansion differential. Those none conforming holes fell right in line. Riveted them down wile maintaining heat on the AFT. portion of the skin. The Finished work turned out nice and taunt and not a hint of "oil canning "
__________________
The Best Government is less Government
Maule MXT-7(daily flyer)
Lancer 235(partner)
Raidial RV-8R Ephanage Done, Wings Done, Fuselage underway
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 03:32 PM.


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.