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Bent fuselage

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rashvac(at)earthlink.net
Guest

Posted: Sun Mar 14, 2010 6:04 pm Post subject: Bent fuselage

I am finally getting around to doing Van's quality control inspection on my RV-10 quick build fuselage.  I have counted 43 errors or omissions.  Some of these are very minor, like snap bushings not being installed, some are a little harder; having to drill out AN470 rivets to install flush rivets.  



The areas of major concern, and maybe someone can enlighten me are:

1.)the bend angle in the rear of the fuselage does not match the F-1006 bulkhead and the F-1023B gussets does not match the holes in the underlying structure. 

2.)it does not look like they put any twist in the 1041 or 1040 channels, so the 1050 floor pan holes do not match up with all the underlying structure especially the side channels. 



Can anyone tell me if this is going to be a big problem?



3.)all of my interior sheet metal did not get machine counter sunk for the #8 screws - can you machine counter sink these parts that have nut plates behind them already?



Thanks.



Russell Shavitz

Shavitz Heating & Air Conditioning

4849 Main Street, Skokie, IL 60077

office:  847-678-1000

cell:  847-417-6622

www.shavitz.com

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Phil.Perry(at)netapp.com
Guest

Posted: Mon Mar 15, 2010 8:04 am Post subject: Bent fuselage

Welcome to the new QB factory!



Actually I believe I can explain this one:



"2.)it does not look like they put any twist in the 1041 or 1040 channels, so the 1050 floor pan holes do not match up with all the underlying structure especially the side channels."



On my QB kit, there were 3-4 holes that were not drilled through the floor pans and into the side channels.  I thought I had the same issue, but after digging around with a flashlight and mirror to look underneath, I could see that they left those holes untouched.  The only logic I could come up with is that the twist is slightly different from fuse to fuse, so they wanted to leave those holes untouched until each of us could put our own floor boards in.



I'll bet your holes aren't drilled either.  It's pretty easy to see with an inspection mirror and a small flashlight.



Phil



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rashvac(at)earthlink.net
Guest

Posted: Mon Mar 15, 2010 1:25 pm Post subject: Bent fuselage

I pulled my floor out and all the holes are drilled but they do not match the side channels and 

the back of the fuse does not match the tailcone bulkhead there is a twist in the fuse. Is this normal and will it straighten when I install the tailcone.

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ricksked(at)cox.net
Guest

Posted: Mon Mar 15, 2010 6:16 pm Post subject: Bent fuselage

Russell,



For once I'm really not trying to be a smart A** but I am really glad I didn't go the QB route. Building the fuselage was the most fun of all the kits IMHO. These problems seem to have started to crop up after Vans changed contractors in the PI. I feel for you guys who forked over the extra $ to get a product that seems to not live up to the extra cost/time value. If you have a no sh*t twist in your fuselage Russell the end result will be an airframe that is not true. The fuselage is the trunk of the tree and the wing/HS/VS incidences along with the thrust line are all established of off it. Regardless of the time involved, I would demand a new one.



Rick S.

Getting close to 100 hours.



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Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Tue Mar 16, 2010 2:55 am Post subject: Bent fuselage

You will find that all the holes along the baggage floor have to be

pulled inward because they didn't put quite enough curve in the bottom

skin. Until you have the tailcone cleco'd on, you won't be able to

tell how some of the longerons line up. Finished this on my QB a

couple weeks ago.



On Mon, Mar 15, 2010 at 1:56 PM, Russell Shavitz <rashvac(at)earthlink.net> wrote:

[quote] 



 I pulled my floor out and all the holes are drilled but they do not match the side channels and

 the back of the fuse does not match the tailcone bulkhead there is a twist in the fuse. Is this normal and will it straighten when I install the tailcone.

 --

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_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

msausen

Joined: 25 Oct 2007
Posts: 559
Location: Appleton, WI USA

Posted: Tue Mar 16, 2010 1:06 pm Post subject: Bent fuselage

I agree, if it is really twisted it's time to start calling Van's out on the quality of the quick builds.  It may be a new factory but it's the same company as before doing it.



  For quick builds the best bang for the buck is probably the wings.  Lots of different things to do with the fuselage but those wings are mind numbingly repetitive.  Just as you hit the point of going bonkers from the repetition on one wing, you get to do it again on the other.  FUN!  I did most of my wing skins at 5am before work when the body was on auto pilot and the brain was still waiting for the predawn fog to lift.  



Michael



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Phil.Perry(at)netapp.com
Guest

Posted: Tue Mar 16, 2010 2:39 pm Post subject: Bent fuselage

My apologies...  I thought you were talking about the side channels in the front floorboards...  Those are the ones that were not drilled that I was referring to.



The rear baggage floors aligned for me.



BTW after attaching the tailcone, I checked the entire length of the tailcone/QB forward fuselage assembly for twist with a digital level.  At the very most, it's twisted 1/10th of a degree.  



Much straighter than the old-time RV's that were built with bubble levels.



Phil

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