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  #1  
Old 10-05-2016, 01:39 PM
skyking902001's Avatar
skyking902001 skyking902001 is offline
 
Join Date: Oct 2009
Location: Gunter, TX
Posts: 337
Default HELP--#%*$ Baggage Door

Ok guys, about to admit the baggage door has beaten me . This is the second door I've built and it is only marginally better than the first. I've read every thread on the board regarding the door and just can't find a magic potion. The fit is quite good everywhere except in the tight curve, both the fore and aft edge stick up about 1/32". I marked the areas in blue--I can push the aft portion of the door down flush. The forward portion can be pushed down almost flush. I'm thinking I need to shrink the skin in these areas but not really sure. Is there anyone in the Dallas/Fort Worth area where I could get some help fitting this door? Thanks in advance.

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RV-8
N23SR
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  #2  
Old 10-05-2016, 01:43 PM
txaviator's Avatar
txaviator txaviator is offline
 
Join Date: Jan 2005
Location: Arlington, TX (DFW)
Posts: 1,177
Default

Call Jay Pratt. If he can't tell you how to fix it, then it simply isn't able to be fixed. He's the master on -8's.
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Gary Robertson
Cresson (50F), TX

RV-12 Built / Sold / Flying
Currently Flying: Cessna Skylane 182
* Hoping Vans decides to offer a bush plane, before I order something else! **EDIT**: got tired of waiting, and bought a '46 J3 Cub!
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  #3  
Old 10-05-2016, 02:26 PM
Robert Anglin Robert Anglin is offline
 
Join Date: Mar 2008
Location: houston, texas
Posts: 900
Default Yep, J is close to you.

Don't let this door get you down. I have a friend that made four or so before he accepted that it was not going to be perfect and used the last one. If you are set on making it per plans, there are some tricks or more like the order you do what and how you do it in. You need to see someone like J that has been doing this for a long time. Or do what most of us do. Go very slow and check the fit over and over and over and over ext. tell you can't see any daylight anywhere. Then crawl inside and very carefully set the rivets slowly and from side to side, starting at one end and going to the other. When it finally fits you will be proud of yourself and rightfully so. keep up the good work. Yours, R.E.A. III #80888
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  #4  
Old 10-05-2016, 03:10 PM
David-aviator David-aviator is offline
 
Join Date: Feb 2005
Location: Chesterfield, Missouri
Posts: 4,514
Default

Mine is not perfect either, airplane flies great....press on.
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  #5  
Old 10-05-2016, 04:27 PM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 533
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I reshaped the fore and aft door ribs to match the curve of the fuselage on my 2nd door. I tried all the other suggestions found on this sight. Nothing else worked. The curvature of the door must match that of the fuselage. Hammer and dolly the ribs until the curve matches. Maybe it was my 4th as Robert suggests.

Last edited by brad walton : 10-05-2016 at 04:29 PM.
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  #6  
Old 10-05-2016, 05:09 PM
Mark Dickens's Avatar
Mark Dickens Mark Dickens is offline
 
Join Date: Apr 2012
Location: Collierville, TN (KFYE)
Posts: 1,475
Default

I spent a good bit of time looking at baggage doors at OSH, both this year and last, and my observation was that most were no better than what you describe...a couple were better. Mine is like yours and like the vast majority of those I saw. It's not a good design and very difficult to get perfect. I'm going to fly off my phase one and then consider trying one more door to see if I can achieve the holy grail, but if I can't, too bad so sad...it'll fly!
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RV-8 #81077 Super Slow Build
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  #7  
Old 10-05-2016, 05:12 PM
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Chino Tom Chino Tom is offline
 
Join Date: Jun 2005
Location: Chino, CA
Posts: 739
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I ended up using a shrinker on mine. A very little bit at a time.
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Chino, CA
RV-8A,180/CS/Carb, AFS 4500 EFIS/EMS
RV-6, sold, 820 hrs of fun.
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  #8  
Old 10-05-2016, 07:03 PM
xblueh2o xblueh2o is offline
 
Join Date: Apr 2011
Location: SF East Bay
Posts: 868
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With the shrinker. Did you modify the shape of the F-873 ribs to achieve the correct shape? I am not too far away from this and have access to a shrinker/stretcher so this is good info to have ahead of time.
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RV-8 with the Showplanes Fastback conversion
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  #9  
Old 10-05-2016, 08:38 PM
scsmith scsmith is offline
 
Join Date: Jan 2008
Location: Ashland, OR
Posts: 2,968
Default baggage door fit is important

Why is the fit important? Because lots of RV-8's have so-so fit of the baggage door. So, when I want to assess the quality of a build, the standard of care of the builder, that is the first place I look.

That isn't meant to sound snobby. Its just a fact that the parts, as supplied, don't produce a great fit. It is a perfectly adequate, functional fit. But it doesn't look great.

I found that the only way to get the fit right was to use metal-forming tools to reshape the ribs. Oh how I wish I had access to a shrinker. But I fiddled with the ribs, got a second set of ribs and fiddled with those, and got something I am happy with, although maybe not proud of. Mine is probably in between the average so-so doors and the really good ones that metal-working geniuses do.
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Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet" Flying since Sept. 2009
Hobbs 700
also
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  #10  
Old 10-05-2016, 09:22 PM
Arvey Fleur's Avatar
Arvey Fleur Arvey Fleur is offline
 
Join Date: Mar 2015
Location: Sacramento, CA
Posts: 51
Default Flox is your friend! And other tricks

My baggage door fits perfectly. Sometimes I make the trip to the hanger just to stand there and stare at it cuz it makes me feel good. (Kinda kidding.)

But seriously, I did a couple things. I strapped the door tightly closed with ratchet straps, then clecoed the ribs to the door with a layer of flox between the the rib and the outer door panel. After that set, I riveting on the outer door to the rib, and strapped it back on. Then drill the inner door from inside, remove, deburr, re-strap, pop rivet from inside.

Also, I ended up only riveting the inner panel on 3 sides, the side against the hinge is open.

Fits, plenty rigid, and works great.
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RV8

"Life seems so much simpler when you're fixing things." - Anakin Skywalker
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