---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Sun 07/24/05: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:30 AM - Re: E-703/Elevator skin mis-match (Charlie England) 2. 10:58 AM - Re: E-703/Elevator skin mis-match (RAS) 3. 05:28 PM - Re: E-703/Elevator skin mis-match (mlwynn@aol.com) 4. 05:47 PM - Looking for ride to OSH Friday afternoon (from MSP) (Wernerworld) ________________________________ Message 1 _____________________________________ Time: 08:30:24 AM PST US From: Charlie England Subject: Re: RV-List: E-703/Elevator skin mis-match --> RV-List message posted by: Charlie England MLWynn@aol.com wrote: >--> RV-List message posted by: MLWynn@aol.com > >Hi all, > >So here's a weird one: > >I was trying to put the right hand elevator structure together with the skin >prepartory to reaming the holes. When I line up all the holes with clecos, >there is a 1/4 twist to the trailing edge and really funky bulge at E-703. If I >take the clecos out of one side, everything lines up fine. It looks like the >holes on one side of E-703, the elevator outboard rib, are off by about 1/8 >or a little more along one side. > >I tried both a fluted and ready to go rib and a second non-fluted one (the >left one I hadn't worked on yet). This is really odd as everything else has >lined up perfectly. If I force the skin and rib together, then I do not have >anything resembling a straight elevator trailing edge. If I put it together >straight, the holes are not lining up. Everything else seems to fit just >perfectly including the other outboard rib and the counterweight skin. > >Suggestions? > >For those of you following my (mis)adventures with the elevator skin >stiffeners, I was able to trim them up to avoid any contact with the opposing skin. >The very slight creases are almost invisible. I think I will proceed with >assembly (if I can figure this other issue out) and show it to my tech counselor. > >Regards, > >Michael Wynn >RV-8, Empennage >San Ramon, California > Inspect the rib carefully in comparison with the other outboard rib. Use calipers if needed to measure flange width & hole position. Does everything match if they are placed back to back? Look at the tooling holes in the web of the rib. Any evidence of them being deformed? I had a problem with holes in several main ribs in the wing not lining up with the wing & discovered that they had not been seated properly on the tooling pins before the flanges were pressed. The flanges were *slightly* different widths & the tooling holes were elongated slightly where the tooling pins tried to punch their own holes. Of course, when I called Van's, this had never happened before & probably wasn't happening to me either. (The new rib they shipped didn't have the distorted tooling holes & all the prepunched holes lined up perfectly with spar & skins.) Charlie ________________________________ Message 2 _____________________________________ Time: 10:58:27 AM PST US From: "RAS" Subject: Re: RV-List: E-703/Elevator skin mis-match --> RV-List message posted by: "RAS" Hi Charlie, I have heard this before. There's a guy here in Northern Ireland who said he same problem with RV7. He called Van's and they send out replacement. Incidently his is one of the first batch of 100 that had the narrow rudder. Marcel ----- Original Message ----- From: "Charlie England" Subject: Re: RV-List: E-703/Elevator skin mis-match > --> RV-List message posted by: Charlie England > > MLWynn@aol.com wrote: > >>--> RV-List message posted by: MLWynn@aol.com >> >>Hi all, >> >>So here's a weird one: >> >>I was trying to put the right hand elevator structure together with the >>skin >>prepartory to reaming the holes. When I line up all the holes with >>clecos, >>there is a 1/4 twist to the trailing edge and really funky bulge at E-703. >>If I >>take the clecos out of one side, everything lines up fine. It looks like >>the >>holes on one side of E-703, the elevator outboard rib, are off by about >>1/8 >>or a little more along one side. >> >>I tried both a fluted and ready to go rib and a second non-fluted one (the >>left one I hadn't worked on yet). This is really odd as everything else >>has >>lined up perfectly. If I force the skin and rib together, then I do not >>have >>anything resembling a straight elevator trailing edge. If I put it >>together >>straight, the holes are not lining up. Everything else seems to fit just >>perfectly including the other outboard rib and the counterweight skin. >> >>Suggestions? >> >>For those of you following my (mis)adventures with the elevator skin >>stiffeners, I was able to trim them up to avoid any contact with the >>opposing skin. >>The very slight creases are almost invisible. I think I will proceed with >>assembly (if I can figure this other issue out) and show it to my tech >>counselor. >> >>Regards, >> >>Michael Wynn >>RV-8, Empennage >>San Ramon, California >> > > Inspect the rib carefully in comparison with the other outboard rib. Use > calipers if needed to measure flange width & hole position. Does > everything match if they are placed back to back? Look at the tooling > holes in the web of the rib. Any evidence of them being deformed? > > I had a problem with holes in several main ribs in the wing not lining > up with the wing & discovered that they had not been seated properly on > the tooling pins before the flanges were pressed. The flanges were > *slightly* different widths & the tooling holes were elongated slightly > where the tooling pins tried to punch their own holes. Of course, when I > called Van's, this had never happened before & probably wasn't happening > to me either. (The new rib they shipped didn't have the distorted > tooling holes & all the prepunched holes lined up perfectly with spar & > skins.) > > Charlie > > > ________________________________ Message 3 _____________________________________ Time: 05:28:14 PM PST US From: mlwynn@aol.com Subject: Re: RV-List: E-703/Elevator skin mis-match --> RV-List message posted by: mlwynn@aol.com I had a couple of emails with the Van's folks. they agree that the issue is a mis-bend elevator skin. They cheerfully offered to send a new one. Always good support, in my experience. Thanks for everyone's input on this. Regards, Michael Wynn RV-8 Empennage -----Original Message----- From: Charlie England Subject: Re: RV-List: E-703/Elevator skin mis-match --> RV-List message posted by: Charlie England MLWynn@aol.com wrote: >--> RV-List message posted by: MLWynn@aol.com > >Hi all, > >So here's a weird one: > >I was trying to put the right hand elevator structure together with the skin >prepartory to reaming the holes. When I line up all the holes with clecos, >there is a 1/4 twist to the trailing edge and really funky bulge at E-703. If I >take the clecos out of one side, everything lines up fine. It looks like the >holes on one side of E-703, the elevator outboard rib, are off by about 1/8 >or a little more along one side. > >I tried both a fluted and ready to go rib and a second non-fluted one (the >left one I hadn't worked on yet). This is really odd as everything else has >lined up perfectly. If I force the skin and rib together, then I do not have >anything resembling a straight elevator trailing edge. If I put it together >straight, the holes are not lining up. Everything else seems to fit just >perfectly including the other outboard rib and the counterweight skin. > >Suggestions? > >For those of you following my (mis)adventures with the elevator skin >stiffeners, I was able to trim them up to avoid any contact with the opposing skin. >The very slight creases are almost invisible. I think I will proceed with >assembly (if I can figure this other issue out) and show it to my tech counselor. > >Regards, > >Michael Wynn >RV-8, Empennage >San Ramon, California > Inspect the rib carefully in comparison with the other outboard rib. Use calipers if needed to measure flange width & hole position. Does everything match if they are placed back to back? Look at the tooling holes in the web of the rib. Any evidence of them being deformed? I had a problem with holes in several main ribs in the wing not lining up with the wing & discovered that they had not been seated properly on the tooling pins before the flanges were pressed. The flanges were *slightly* different widths & the tooling holes were elongated slightly where the tooling pins tried to punch their own holes. Of course, when I called Van's, this had never happened before & probably wasn't happening to me either. (The new rib they shipped didn't have the distorted tooling holes & all the prepunched holes lined up perfectly with spar & skins.) Charlie ________________________________ Message 4 _____________________________________ Time: 05:47:08 PM PST US From: "Wernerworld" Subject: RV-List: Looking for ride to OSH Friday afternoon (from MSP) --> RV-List message posted by: "Wernerworld" Hi, I'm trying to get my brother in law to OSH on Friday afternoon from the Minneapolis area. No problem pitching in on expenses. He won't need a ride back. If you might be able to offer up a seat, let me know by email at russ@wernerworld.com and I'll arrange a contact. Thanks, Russ Werner HRII Park City, UT