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started covering

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stuart(at)harnerfarm.net
Guest

Posted: Fri Feb 28, 2014 5:18 pm Post subject: started covering

Hey guys,



Covering has started!  I have been practicing with some old 2.7 oz fabric on

all kinds of makeshift frames using some old out of date Poly-Tak.  Just

getting used to gluing and shrinking technics again, as it has been nearly

18 years (Yikes!) since I have messed with any of this stuff.



Anyway, this weekend, I managed to get the elevators covered with 1.7 oz

fabric.  Not as pretty as I would have liked, but I think it will pass once

the tapes are applied.



I managed to work my way up to 325°  in 25° increments.  Watching the

trailing edges, I decided to stop there.  Here is a picture of the two

elevators lined up so you can see how much they are starting to warp.  I

wish I had lined them up like this before covering for a comparison, but I

did not think about it.  I have to assume they were originally straight.



What do you think, did I go too far, or is this OK?



Thanks in advance.



Stuart

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neilsenrm(at)gmail.com
Guest

Posted: Fri Feb 28, 2014 7:57 pm Post subject: started covering

Stuart



So what's the problem? The fabric is very strong and you want it tight. Remember we are looking at trailing edge to trailing edge so it looks twice as bad as it is and it doesn't look bad. Be sure to shrink the whole piece the same so that you don't get any warping. Lots of chafing tape, looks good. Keep going.

 



Rick Neilsen

Redrive VW powered MKIIIC



On Fri, Feb 28, 2014 at 8:17 PM, Stuart Harner <stuart(at)harnerfarm.net (stuart(at)harnerfarm.net)> wrote:

 [quote] Hey guys,

 

 Covering has started!  I have been practicing with some old 2.7 oz fabric on

 all kinds of makeshift frames using some old out of date Poly-Tak.  Just

 getting used to gluing and shrinking technics again, as it has been nearly

 18 years (Yikes!) since I have messed with any of this stuff.

 

 Anyway, this weekend, I managed to get the elevators covered with 1.7 oz

 fabric.  Not as pretty as I would have liked, but I think it will pass once

 the tapes are applied.

 

 I managed to work my way up to 325°  in 25° increments.  Watching the

 trailing edges, I decided to stop there.  Here is a picture of the two

 elevators lined up so you can see how much they are starting to warp.  I

 wish I had lined them up like this before covering for a comparison, but I

 did not think about it.  I have to assume they were originally straight.

 

 What do you think, did I go too far, or is this OK?

 

 Thanks in advance.

 

 Stuart

 [b]

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rowedenny

Joined: 09 Mar 2008
Posts: 338
Location: Western PA

Posted: Fri Feb 28, 2014 10:06 pm Post subject: started covering

Looks great Stuart!



Dennis "Skid" Rowe

Mk3, 690L-70, Leechburg, PA



 	  Quote: 	
		   On Feb 28, 2014, at 8:17 PM, "Stuart Harner" <stuart(at)harnerfarm.net> wrote:

 

 Hey guys,

 

 Covering has started!  I have been practicing with some old 2.7 oz fabric on

 all kinds of makeshift frames using some old out of date Poly-Tak.  Just

 getting used to gluing and shrinking technics again, as it has been nearly

 18 years (Yikes!) since I have messed with any of this stuff.

 

 Anyway, this weekend, I managed to get the elevators covered with 1.7 oz

 fabric.  Not as pretty as I would have liked, but I think it will pass once

 the tapes are applied.

 

 I managed to work my way up to 325Â°  in 25Â° increments.  Watching the

 trailing edges, I decided to stop there.  Here is a picture of the two

 elevators lined up so you can see how much they are starting to warp.  I

 wish I had lined them up like this before covering for a comparison, but I

 did not think about it.  I have to assume they were originally straight.

 

 What do you think, did I go too far, or is this OK?

 

 Thanks in advance.

 

 Stuart

 <100_7558.jpg>

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Larlaeb

Joined: 02 Apr 2013
Posts: 75
Location: League City, Texas United States

Posted: Sat Mar 01, 2014 4:52 am Post subject: Re: started covering

Looks good to me.

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Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Sat Mar 01, 2014 8:58 am Post subject: Re: started covering

They look good.  I don't think the trailing edges are much of a concern.  I actually went to far the first time and warped the leading edges so much it was impossible to install the hinges.  After that I put a straight edge on the L.E. and shrank until they just started to bend.  I didn't worry about the trailing edges.

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Rick Lewis

Joined: 03 Jul 2007
Posts: 122
Location: Kingston, Tn.

Posted: Sat Mar 01, 2014 3:40 pm Post subject: Re: started covering

It looks very good to me, realize this is a slow moving airplane and being a little off will have very little effect on flight characteristics.  Keep up the good work and don't be afraid to tackle the big wings....looking goooood....

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_________________
Rick Lewis

(VW Watercooled Engine)

Rex Rodebush

Joined: 10 Jan 2006
Posts: 209
Location: Branson West area, Missouri

Posted: Sun Mar 02, 2014 8:06 am Post subject: Re: started covering

What I should have said is I put a straight edge on the L.E. of the movable surfaces and on the T.E. of the fixed surfaces to make sure the hinges could be installed.

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Jason Omelchuck

Joined: 07 May 2009
Posts: 120
Location: Portland Oregon

Posted: Mon Mar 03, 2014 9:36 am Post subject: Re: started covering

when covering the wings I found the trailing edge did not warp but the ribs bowed out of column. I would keep an eye on this when shrinking the wings.



FWIW

Jason

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stuart(at)harnerfarm.net
Guest

Posted: Thu Mar 06, 2014 8:08 am Post subject: started covering

Everyone,



Thanks for all the advice, I am going to tackle a wing next.



Stuart



Do not archive



  



--

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