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trimming cabin cover door openings

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rv10rob(at)gmail.com
Guest

Posted: Wed May 27, 2009 8:10 pm Post subject: trimming cabin cover door openings

Saying it looks like a drunk monkey made the scribe lines on my cabin cover is probably unfair to drunk monkeys.  At least I have options: at times I have 2 or 3 scribe lines to choose from in a particular area, and in other places I get to create my own line.

   

 Joking aside, I'm contemplating whether to trim to the lines around the door openings now or wait until I'm fitting the doors.  I need to trim at least part of the way around the cabin attachment screw holes to get a countersink in there.  I heard at least one person say they overtimmed in this area by following the lines, hence my hesitation doing it now.  Anyone have a recommendation?

   

 Thanks...

  

 -Rob

  [quote][b]

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Wed May 27, 2009 8:54 pm Post subject: trimming cabin cover door openings

Rob  

   

I had exactly the same concern; in fact I called Van’s about the size of the gap between the door and the lower door flange on the canopy.   

   

Initially, when drilling the screw holes, I cut notches in the canopy cover to allow access with a drill. I clecoed the holes from the back site and haven’t final drilled / countersunk the holes yet. The cleco tips don’t interfere with the doors so this is not an issue. The attached pix is not great, but you can see where I cut notches for the clecoes. Later I inserted the clecoes from under the door sill.   

   

Prior to fitting the doors, I cut to about ¼” of the scribe lines. I was concerned about the apparent gap between the door and canopy when I was setting up the doors for gluing. What I found was that this gap all but disappeared (except for the lower flange) when the doors were cut to fit flush with the fuse / canopy door opening. I ended up cutting back to and in some places past the scribe lines. I was really surprised at how much the gap decreased. The place to be careful is the lower door flange. If you trim this to the scribe line, you may find the gap to be much larger than you desire (depending on what you are using for weather seal.   

   

Understanding your concern, I would cut the canopy back so the inner door half sits easily in the door opening without making contact with the canopy flange. After gluing the door, be prepared to trim back further as required when fitting the door to flit flush in the opening. It is more work but less stress.  

   

Cheers  

   

Les  

#40643 – A friend of drunk monkeys  

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rob Kochman

 Sent: May-27-09 10:09 PM

 To: rv10-list(at)matronics.com

 Subject: trimming cabin cover door openings  

  

     

Saying it looks like a drunk monkey made the scribe lines on my cabin cover is probably unfair to drunk monkeys.  At least I have options: at times I have 2 or 3 scribe lines to choose from in a particular area, and in other places I get to create my own line.  

    

   

    

Joking aside, I'm contemplating whether to trim to the lines around the door openings now or wait until I'm fitting the doors.  I need to trim at least part of the way around the cabin attachment screw holes to get a countersink in there.  I heard at least one person say they overtimmed in this area by following the lines, hence my hesitation doing it now.  Anyone have a recommendation?  

    

   

    

Thanks...  

    

   

    

-Rob  

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pitts_pilot(at)bellsouth.
Guest

Posted: Thu May 28, 2009 5:43 am Post subject: trimming cabin cover door openings

I omitted the 'read the whole section' step when I trimmed my first door 

and ended up with little contact area to work with ....... trimmed to 

the 'almost finished' line.  So I have clecos everywhere that go into 

the 'air space' between door inner shell and cabin top.  At the bottom 

of the door, I'll have to use strips to press the bottom glue line 

together.  But I think that having the clecos will actually help in the 

gluing process.



But my alignment holes came out OK, so there's something going on that I 

don't understand.

Linn



Rob Kochman wrote:

 	  Quote: 	
		   Saying it looks like a drunk monkey made the scribe lines on my cabin 

 cover is probably unfair to drunk monkeys.  At least I have options: at 

 times I have 2 or 3 scribe lines to choose from in a particular area, 

 and in other places I get to create my own line.

  

 Joking aside, I'm contemplating whether to trim to the lines around the 

 door openings now or wait until I'm fitting the doors.  I need to trim 

 at least part of the way around the cabin attachment screw holes to get 

 a countersink in there.  I heard at least one person say they overtimmed 

 in this area by following the lines, hence my hesitation doing it now.  

 Anyone have a recommendation?

  

 Thanks...

  

 -Rob

 

 *

 

 

 *

 

 

 ------------------------------------------------------------------------

 

 

 Checked by AVG - www.avg.com

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Thu May 28, 2009 6:45 am Post subject: trimming cabin cover door openings

Linn



I am not sure if I understand your problem about the bottom of the door, but

if I have got it right there may be a better solution for you. 



On my first door I had a gap on the bottom door seam. I found that the epoxy

coverage wasn't what it should be and much of the door seam opened up. To

fix, I pumped *lots* and *lots* of thickened epoxy into the seam and then

clamped with 20 or so cleco clamps. I folded packing tape over the seam

first so the clamps didn't get epoxied to the door. The result was quite

good. 



I found a 10cc syringe (of the type used to dispense meds to kids) was able

to suck up and dispense thickened epoxy.



If you have trimmed too much off the door bottom to cleco it into door

opening per the plans, you may find the above approach helpful. Just leave

the bottom seam unglued do it after the sides and top have been glued.



As far as alignment holes were concerned, that was my problem - they didn't

align nor did the placement (in case of the front tab) match the plans. For

such position sensitive parts, I am very disappointed with the Van's QC. 



Cheers



Les

#40643 - living in a f/g world



--

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Thu May 28, 2009 8:13 am Post subject: trimming cabin cover door openings

You may want to just look at other people's RV-10's and photos

of flying RV-10's.  I worried I'd trim too much too, but it

turns out it's not really one of those major worries. I thought

I did at one point but then I ended up trimming more.  The

scribe lines on mine were the same way.  Sometimes 2 or 3 lines,

and you don't know which one to use.  But, it all works out.

Tim Olson - RV-10 N104CD

do not archive

Rob Kochman wrote:

 	  Quote: 	
		   Saying it looks like a drunk monkey made the scribe lines on my cabin 

 cover is probably unfair to drunk monkeys.  At least I have options: at 

 times I have 2 or 3 scribe lines to choose from in a particular area, 

 and in other places I get to create my own line.

  

 Joking aside, I'm contemplating whether to trim to the lines around the 

 door openings now or wait until I'm fitting the doors.  I need to trim 

 at least part of the way around the cabin attachment screw holes to get 

 a countersink in there.  I heard at least one person say they overtimmed 

 in this area by following the lines, hence my hesitation doing it now.  

 Anyone have a recommendation?

  

 Thanks...

  

 -Rob

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pitts_pilot(at)bellsouth.
Guest

Posted: Thu May 28, 2009 11:06 am Post subject: trimming cabin cover door openings

Les, thanks for the note!  This morning we glued the pilots door halves 

together. Attached is picture.  You can see the tabs I used to hold the 

bottom door tight to the fuselage.  The door halves fit really well 

together, and did fit the contour of the fuselage with the exception of 

the very top where the hinges go.  Also, the angle of the two halves was 

different in the area of the third cleco up where the windshield will 

be, and I just filled that with epoxy/milled fiber.  All in all, the 

gluing went well, but it was really messy!!!



Now comes the trimming/sanding/filling/sanding/contouring .....



Passenger door goes together next week!! ... Should be a whole lot 

easier since I didn't trim the passenger side like the pilot side!!!

Linn



Les Kearney wrote:

 	  Quote: 	
		   

 

 Linn

 

 I am not sure if I understand your problem about the bottom of the door, but

 if I have got it right there may be a better solution for you. 

SNIP!

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AirMike

Joined: 27 Feb 2007
Posts: 514
Location: Nevada

Posted: Thu May 28, 2009 8:52 pm Post subject: trimming cabin cover door openings

I too found the scribe lines confusing. The doors are a big project and they will never be as perfect as you want them. But do not worry too much about over-cutting the door (except if you disturb the glue joint). You can always build up the cabin top flange to meet the door with epoxy and F/G tape or tape/micro-baloons combo.

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_________________
See you OSH '18
Q/B - sold.

rv10rob(at)gmail.com
Guest

Posted: Fri May 29, 2009 8:45 pm Post subject: trimming cabin cover door openings

Thank you all for the tips.  Sounds like I should be reasonably conservative for now and expect to cut more later, but not worry about it too much.  I will now have to go find something else to worry about.

  

 Thanks again..

  

 -Rob

 On Thu, May 28, 2009 at 11:56 AM, linn <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:

  	  Quote: 	
		  Les, thanks for the note!  This morning we glued the pilots door halves together. Attached is picture.  You can see the tabs I used to hold the bottom door tight to the fuselage.  The door halves fit really well together, and did fit the contour of the fuselage with the exception of the very top where the hinges go.  Also, the angle of the two halves was different in the area of the third cleco up where the windshield will be, and I just filled that with epoxy/milled fiber.  All in all, the gluing went well, but it was really messy!!!

 

Now comes the trimming/sanding/filling/sanding/contouring .....



Passenger door goes together next week!! ... Should be a whole lot easier since I didn't trim the passenger side like the pilot side!!!

Linn  



Les Kearney wrote:

  	  Quote: 	
		  --> RV10-List message posted by: "Les Kearney" <kearney(at)shaw.ca (kearney(at)shaw.ca)>

 

Linn



I am not sure if I understand your problem about the bottom of the door, but

if I have got it right there may be a better solution for you. 

	


SNIP!

	




  



-- 

Rob Kochman

RV-10 Wings

Woodinville, WA (near Seattle)

http://kochman.net/N819K

  [quote][b]

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