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Correcting canopy spread?

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a.s.elliott(at)cox.net
Guest

Posted: Sat Oct 18, 2008 6:56 am Post subject: Correcting canopy spread?

Despite fitting quite well during construction, now that I am getting close  to flying I find that the rear of my canopy has spread a bit, may 1/2".   This makes it more difficult to close and secure the canopy.

  

 I was wondering if anyone had tried to adjust the rear canopy bow *after*  getting the whole thing together and installed?

  

 I was thinking of two methods.  Both require measuring the existing  spread first.

  

 [1] Loosen the front screws.  Completely unscrew the canopy from the  rear bow and attempt to remove the bow from the frame.  Then attempt to  carefully squeeze the bow to tighten it 1/2".

  

 or 

  

 [2] Remove the canopy from the plane.  Loosen all the screws a  bit.  Place canopy sideways on a ground pad and carefully push down on  the rear of the frame until the set changes by 1/2".

  

 I would appreciate comments on these proposals, and of course any  additional (especially proven) ideas.

  

 Thanks,

 Andy Elliott, Mesa, AZ

N601GE (registered)

601XL/TD, Corvair,  finishing...

   [quote][b]

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leo(at)zuehlfield.com
Guest

Posted: Sat Oct 18, 2008 8:21 am Post subject: Correcting canopy spread?

Andrew,  The bow is SOOO easy to kink, yes I know.  Remove it, pack it 

with sand, tweek it and reinstall.



Leo Gates

N601Z - CH601HDS TDO

Rotax 912UL



Dr. Andrew Elliott wrote:

 	  Quote: 	
		   Despite fitting quite well during construction, now that I am getting 

 close to flying I find that the rear of my canopy has spread a bit, 

 may 1/2".  This makes it more difficult to close and secure the canopy.

  

 I was wondering if anyone had tried to adjust the rear canopy bow 

 *after* getting the whole thing together and installed?

  

 I was thinking of two methods.  Both require measuring the existing 

 spread first.

  

 [1] Loosen the front screws.  Completely unscrew the canopy from the 

 rear bow and attempt to remove the bow from the frame.  Then attempt 

 to carefully squeeze the bow to tighten it 1/2".

  

 or

  

 [2] Remove the canopy from the plane.  Loosen all the screws a bit.  

 Place canopy sideways on a ground pad and carefully push down on the 

 rear of the frame until the set changes by 1/2".

  

 I would appreciate comments on these proposals, and of course any 

 additional (especially proven) ideas.

  

 Thanks,

 Andy Elliott, Mesa, AZ

 N601GE (registered)

 601XL/TD, Corvair, finishing...

Leo Gates
	


N601Z - CH601HDS TDO

Rotax 912UL

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Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Sat Oct 18, 2008 8:49 am Post subject: Re: Correcting canopy spread?

I've had the same problem and haven't fixed it yet but I've been thinking that a possible fix would be to add a crossbar connected to the rear bow.



This would fix the spacing issue and allow for the attachment of a hold down strap or safety wire much like the one Jay just posted.

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_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

gfmjr_20(at)HOTMAIL.COM
Guest

Posted: Sat Oct 18, 2008 12:52 pm Post subject: Correcting canopy spread?

Andy--

 I had the same problem and added a cross bar. When adding the cross bar I made

two brackets which were riveted to the rear bow. On one bracket I drilled a hole for 

an anchoring bolt to one end of the added cross bar and on the other bracket I cut a slot

to anchor the other end of the cross bar. This slot will allow for future needed adjustments.

For the cross bar I used a piece of 6061 the same diameter as the rear bow. I flatened the

ends in a vice and drilled the required holes. I used an3 bolts with stopnuts to secure the ends.

An added advantage is that the bar acts as a handy way to pull the canopy down.



George May

6t01XL 912s  238 hrs



From: a.s.elliott(at)cox.net

To: zenith-list(at)matronics.com

Subject: Correcting canopy spread?

Date: Sat C 18 Oct 2008 07:55:28 -0700



      .ExternalClass {background-position:left top;font-size:11pt;margin-left:10px;color:#000000;background-repeat:no-repeat;font-family:Courier New;}     Despite fitting quite well during construction C now that I am getting close  to flying I find that the rear of my canopy has spread a bit C may 1/2".   This makes it more difficult to close and secure the canopy.

  

 I was wondering if anyone had tried to adjust the rear canopy bow *after*  getting the whole thing together and installed?

  

 I was thinking of two methods.  Both require measuring the existing  spread first.

  

 [1] Loosen the front screws.  Completely unscrew the canopy from the  rear bow and attempt to remove the bow from the frame.  Then attempt to  carefully squeeze the bow to tighten it 1/2".

  

 or 

  

 [2] Remove the canopy from the plane.  Loosen all the screws a  bit.  Place canopy sideways on a ground pad and carefully push down on  the rear of the frame until the set changes by 1/2".

  

 I would appreciate comments on these proposals C and of course any  additional (especially proven) ideas.

  

 Thanks C

 Andy Elliott C Mesa C AZ

N601GE (registered)

601XL/TD C Corvair C  finishing...

    	  Quote: 	
		  



 	  Quote: 	
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ww.matronics.com/contribution



	
See how Windows Mobile brings your life togetho/msnnkwxp1020093182mrt/direct/01/' target='_new'>See Now  [quote][b]

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Gig Giacona

Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA

Posted: Mon Oct 20, 2008 8:26 am Post subject: Re: Correcting canopy spread?

George, It's Monday and I'm having trouble picturing the bracket (which seems like a REAL good idea). DO you have any photos?

 	  gfmjr_20(at)HOTMAIL.COM wrote: 	
		  Andy--

ï¿½I had the same problem and added a cross bar. When adding the cross bar I made

two brackets which were riveted to the rear bow. On one bracket I drilled a hole for 

an anchoring bolt to one end of the added cross bar and on the other bracket I cut a slot

to anchor the other end of the cross bar. This slot will allow for future needed adjustments.

For the cross bar I used a piece of 6061 the same diameter as the rear bow. I flatened the

ends in a vice and drilled the required holes. I used an3 bolts with stopnuts to secure the ends.

An added advantage is that the bar acts as a handy way to pull the canopy down.



George May

6t01XL 912sï¿½ 238 hrs

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_________________
W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR

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