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601 steering slot cure / canopy progress

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ding(at)tbscc.com
Guest

Posted: Mon Dec 10, 2007 2:03 pm Post subject: 601 steering slot cure / canopy progress

The temp. limitation is a valid concern, and 

probably the weak point in my particular installation, but I have no numbers 

to go by.  I can only say that, short of a fire, I don't expect it will get 

warm enough in that location to be a problem. If it was something that had 

potentially serious consequences upon failure, I would certainly be looking 

more closely at that. I could replace the vinyl with thin aluminum tubing, 

although it may not slide as freely, and might want to rattle. I may do that 

if I have it apart again.

            Probably should start a new thread, but I have my canopy 

installation nearly complete. It was challenging, but that was in large part 

due to self imposed causes.   (1)  I'm really too fussy about a perfect fit, 

and that takes extra time, and  (2) I raised the entire canopy about an inch 

from standard position, because of my height.  I flew the factory plane, and 

while I had head clearance, It was minimal and more would be welcome. 

Raising the canopy requires considerable extra work and time for just an 

inch, but it turned out well. I'm glad I did it.  If I learned anything that 

might be of help to others, it would be this.--- I made  temptates for the 

front (and in my case, rear) trim strips using printing press aluminum 

(.007"thick). I got it from our local newspaper. (I had to grovel 

shamelessly to obtain a few sheets). It cuts with sissors and clecoes can 

simply be pushed through it. I used several pieces per template and duct 

taped them together as needed. A 2 inch piece of the rubber seal strip 

served to adjust the clearance gap for a good seal without too much 

pressure. The trim strips have a complex curve top and bottom when finished, 

and I can't imagine getting them right without a system similar to this. 

This thin sheet aluminum has the ideal characteristics for this job.

        I also had to slightly dog-leg the lower canopy latch brackets to 

get a flush outer skin fit while still maintaining the required bolt edge 

distance where the bolts penetrate the upper front longerons.   Wow, that 

really sounds confusing.      I wanted the rear side of the canopy frame to 

be flush with the side of the plane below it. (does that help?)

                                                                             

                                        Lynn

                                                                             

                                        601XL / Corvair

---

Gig Giacona

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

Posted: Mon Dec 10, 2007 2:20 pm Post subject: Re: 601 steering slot cure

OK, then this brings up a good question. Has anyone tested to see what the temp is around the firewall of a 601XL? If we have that number it is easy to test materiel we use there?

 	  ding(at)tbscc.com wrote: 	
		  The temp. limitation is a valid concern, and 

probably the weak point in my particular installation, but I have no numbers 

to go by.  I can only say that, short of a fire, I don't expect it will get 

warm enough in that location to be a problem. If it was something that had 

potentially serious consequences upon failure, I would certainly be looking 

more closely at that. I could replace the vinyl with thin aluminum tubing, 

although it may not slide as freely, and might want to rattle. I may do that 

if I have it apart again.-

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

davgray(at)sbcglobal.net
Guest

Posted: Mon Dec 10, 2007 3:40 pm Post subject: 601 steering slot cure / canopy progress

Gig



My 601XL w/ WW cowl and WW corvair engine routinely tests about 100 degrees

above ambient behind the engine.

Gary Ray

davgray(at)sbcglobal.net



---

Gig Giacona

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

Posted: Mon Dec 10, 2007 3:53 pm Post subject: Re: 601 steering slot cure / canopy progress

If that is the case then there ought to be LOTS of plastics we can use and just triple the test temp for good measure.



I assume that is 100 F right?



 	  davgray(at)sbcglobal.net wrote: 	
		  Gig



My 601XL w/ WW cowl and WW corvair engine routinely tests about 100 degrees

above ambient behind the engine.

Gary Ray

davgray(at)sbcglobal.net



---

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

Afterfxllc(at)aol.com
Guest

Posted: Mon Dec 10, 2007 5:08 pm Post subject: 601 steering slot cure / canopy progress

Zenith has a steering slot cure that goes on the AMD version but it isn't  available to us. That kind of pisses me off...... It was on the online  parts drawing http://www.zenithair.com/zodiac/xl/data/parts6xb13.pdf check  out 6B7-4R, 6B7-4L, 6B7-5.  

  

 Jeff 

  

  In a message dated 12/10/2007 5:05:45 P.M. Eastern Standard Time,  ding(at)tbscc.com writes:

 [quote]-->    Zenith-List message posted by: "dingfelder"    <ding(at)tbscc.com>



                           The temp. limitation is a valid concern,    and 

probably the weak point in my particular installation, but I have no    numbers 

to go by.  I can only say that, short of a fire, I don't    expect it will get 

warm enough in that location to be a problem. If it was    something that had 

potentially serious consequences upon failure, I would    certainly be looking 

more closely at that. I could replace the vinyl with    thin aluminum tubing, 

although it may not slide as freely, and might want    to rattle. I may do that 

if I have it apart again.

               Probably should start a new thread, but I have my canopy    

installation nearly complete. It was challenging, but that was in large    part 

due to self imposed causes.   (1)  I'm really too    fussy about a perfect fit, 

and that takes extra time, and  (2) I    raised the entire canopy about an inch 

from standard position, because of    my height.  I flew the factory plane, and 

while I had head clearance,    It was minimal and more would be welcome. 

Raising the canopy requires    considerable extra work and time for just an 

inch, but it turned out well.    I'm glad I did it.  If I learned anything that 

might be of help to    others, it would be this.--- I made  temptates for the 

front (and in    my case, rear) trim strips using printing press aluminum 

(.007"thick). I    got it from our local newspaper. (I had to grovel 

shamelessly to obtain a    few sheets). It cuts with sissors and clecoes can 

simply be pushed through    it. I used several pieces per template and duct 

taped them together as    needed. A 2 inch piece of the rubber seal strip 

served to adjust the    clearance gap for a good seal without too much 

pressure. The trim strips    have a complex curve top and bottom when finished, 

and I can't imagine    getting them right without a system similar to this. 

This thin sheet    aluminum has the ideal characteristics for this job.

           I also had to slightly dog-leg the lower canopy latch brackets to    

get a flush outer skin fit while still maintaining the required bolt edge    

distance where the bolts penetrate the upper front longerons.      Wow, that 

really sounds confusing.      I wanted the rear    side of the canopy frame to 

be flush with the side of the plane below it.    (does that help?)

                                                                                      

                                              Lynn

                                                                                         

                                              601XL / Corvair

---

craig(at)craigandjean.com
Guest

Posted: Mon Dec 10, 2007 5:46 pm Post subject: 601 steering slot cure / canopy progress

I saw those new parts on the diagram a while ago and asked the factory about them. The folks in MO said that they had just borrowed the diagram from AMD or Canada and didn’t make those parts. I believe they come out of Zenith Canada. The steering rods on the “super quick build kits” which come out of Canada (basically an unassembled AMD) also come with smooth steering rods with a short section of threads at one end.  

   

It isn’t a complex design, I independently came up with the same idea before I saw the diagram. I did two things differently: instead of the jog which gives the slide room to move I used a separate spacer. And my plate had an “L” which allowed me to rivet them to the nose gear channel 6B8-2.  

   

-- Craig  

       

From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Afterfxllc(at)aol.com

 Sent: Monday, December 10, 2007 6:05 PM

 To: zenith-list(at)matronics.com

 Subject: Re: Re: 601 steering slot cure / canopy progress  

  

  

     

Zenith has a steering slot cure that goes on the AMD version but it isn't available to us. That kind of pisses me off...... It was on the online parts drawing http://www.zenithair.com/zodiac/xl/data/parts6xb13.pdf check out 6B7-4R, 6B7-4L, 6B7-5.    

    

   

    

Jeff   

    

   

  

       [quote][b]

planecrazydld(at)yahoo.co
Guest

Posted: Sat Dec 15, 2007 6:45 am Post subject: 601 steering slot cure / canopy progress

please remember that this is the FIREWALL we are talking about here. Its purpose is to prevent flame from the passenger cabin. The steering rods traverse in and out of the hot/cold plane and if the rod is hot enough to ignite the plastic, it will burn on the inside as well.



The fumes generated are as big a concern as the flames...



Gig Giacona <wr.giacona(at)suddenlink.net> wrote:[quote] --> Zenith-List message posted by: "Gig Giacona" 



If that is the case then there ought to be LOTS of plastics we can use and just triple the test temp for good measure.



I assume that is 100 F right?

davgray(at)sbcglobal.net wrote:

[quote] Gig

 

 My 601XL w/ WW cowl and WW corvair engine routinely tests about 100 degrees

 above ambient behind the engine.

 

 

    [quote][b]

Gig Giacona

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

Posted: Sat Dec 15, 2007 5:02 pm Post subject: Re: 601 steering slot cure / canopy progress

I couldn't agree more. That's why I'm looking for a way to improve on the very leaky design that is in my set of 601XL plans.

 	  planecrazydld(at)yahoo.co wrote: 	
		  please remember that this is the FIREWALL we are talking about here. Its purpose is to prevent flame from the passenger cabin. The steering rods traverse in and out of the hot/cold plane and if the rod is hot enough to ignite the plastic, it will burn on the inside as well.



The fumes generated are as big a concern as the flames...



Gig Giacona <wr> wrote:--> Zenith-List message posted by: "Gig Giacona" 



If that is the case then there ought to be LOTS of plastics we can use and just triple the test temp for good measure.



I assume that is 100 F right?

davgray(at)sbcglobal.net wrote:

Gig

 

 My 601XL w/ WW cowl and WW corvair engine routinely tests about 100 degrees

 above ambient behind the engine.

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

sonar1@cox.net

Joined: 02 Oct 2007
Posts: 55
Location: Santa Barbara, Ca

Posted: Sat Dec 15, 2007 7:42 pm Post subject: Re: 601 steering slot cure / canopy progress

Hi guys:

For the steering rods, I did something that I really like on my 701. It  seems to work just fine. 

I bought some nomex cloth - about as thick as denim, and non porous  - and sewed up two triangular boots. I made a rectangular  L-angle support for inside the cabin. 

I have a portable CO detector, and have never had a rise  above background reading.

Got the nomex  and the kevlar thread on the internet  somewhere.

This stuff will withstand really high temperatures.



Don't have a picture handy, but if interested, will find one.



Fred Sanford  N9701 flew Sept '05, now building 9601  Santa Barbara, Ca.

Tim Juhl

Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan

Posted: Sat Dec 15, 2007 9:05 pm Post subject: Re: 601 steering slot cure / canopy progress

Where did you get the nomex and did you use nomex thread as well?



Tim

_________________
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring!

NYTerminat(at)aol.com
Guest

Posted: Sat Dec 15, 2007 9:15 pm Post subject: 601 steering slot cure / canopy progress

Fred,

 I would be interested in looking at  that.

  

 Bob Spudis N701ZX CH701/912s

  

  

  

  

 In a message dated 12/15/2007 10:46:30 P.M. Eastern Standard Time,  sonar1(at)cox.net writes:

  	  Quote: 	
		  Hi    guys:

For the steering rods, I did something that I really like on my 701.    It  seems to work just fine. 

I bought some nomex cloth - about as    thick as denim, and non porous  - and sewed up two triangular boots. I    made a rectangular  L-angle support for inside the cabin. 

I have a    portable CO detector, and have never had a rise  above background    reading.

Got the nomex  and the kevlar thread on the internet     somewhere.

This stuff will withstand really high temperatures.



Don't    have a picture handy, but if interested, will find one.



Fred    Sanford  N9701 flew Sept '05, now building 9601  Santa Barbara,    Ca.



	


 

  



See AOL's top rated recipes and easy ways to stay in shape for winter.

  [quote][b]

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