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Top Window, Bubble Doors and Windshield on 701

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beachyjeff(at)juno.com
Guest

Posted: Thu Feb 22, 2007 12:46 pm Post subject: Top Window, Bubble Doors and Windshield on 701

I am ready to install my top window, Zenith bubble doors and the

windshield on my CH701. I have several questions for those who have

completed these tasks:



1. What is the top window made of, plexiglass or lexan? How about the

windshield? Bubble doors?



2. The plans call for rivets for the top window. With all the talk of

cracking lexan or plexiglass, is it wise to use screws instead of rivets?



3. Is the idea of the diagonal stiffener 7F12-3 to put a bow in the top

window?



4. Has anyone used some type of weatherstripping or silicone between the

window and the upper tubes to keep out water?



5. It seems like the rivets at the front upper tube/cabin frame

connection will put pressure on the top window, since the cabin frame and

rivets are higher than the upper tubes. The same goes for the back

gusset, though the plans call for that area to be cut out.



6. What about silicone or weatherstripping for the front windshield?

Roger at Zenith says his 701 leaks pretty badly during rain. Has anyone

managed to keep the water out? 



7. The list archives show that some have used the rubber channel 05-01500

from ACS for the windshield. How did you fasten the channel?



8. Is there any problem with installing the top window, bubble doors and

front windshield before installing the wings?



Thanks in advance for your ideas.



Jeff Beachy

CH701, 85% completed

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pacificpainting(at)comcas
Guest

Posted: Thu Feb 22, 2007 1:17 pm Post subject: Top Window, Bubble Doors and Windshield on 701

I don't know about the rest of your questions, but you might check on 

whether using silicone on these parts is alright or not. Make sure it is 

compatible.



---

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NYTerminat(at)aol.com
Guest

Posted: Thu Feb 22, 2007 3:47 pm Post subject: Top Window, Bubble Doors and Windshield on 701

In a message dated 2/22/2007 3:47:26 P.M. Eastern Standard Time,  beachyjeff(at)juno.com writes:

  	  Quote: 	
		  -->    Zenith-List message posted by: Jeffrey A Beachy    <beachyjeff(at)juno.com>

Jeff

I am ready to install my top window,    Zenith bubble doors and the

windshield on my CH701. I have several    questions for those who have

completed these tasks:

Top is lexan,bubble doors and windshield are plexi( at    least that's what mine was)

1. What is the top window made    of, plexiglass or lexan? How about the

windshield? Bubble    doors?

I used rivets, no    problem

2. The plans call for rivets for the top window.    With all the talk of

cracking lexan or plexiglass, is it wise to use screws    instead of rivets?

Yes

3. Is    the idea of the diagonal stiffener 7F12-3 to put a bow in the    top

window?

I used a 3/16" x 1/2" self stick    weatherstripping

4. Has anyone used some type of    weatherstripping or silicone between the

window and the upper tubes to keep    out water?

Weatherstripping took care of some    of that

5. It seems like the rivets at the front upper    tube/cabin frame

connection will put pressure on the top window, since the    cabin frame and

rivets are higher than the upper tubes. The same goes for    the back

gusset, though the plans call for that area to be cut    out.

I used GE clear silicone between the    windshield and the top window,no leaks

6. What about    silicone or weatherstripping for the front windshield?

Roger at Zenith says    his 701 leaks pretty badly during rain. Has anyone

managed to keep the    water out? 

I used a U rubber channel and    secured with some automotive weatherstrip sealant(very small bead below the U    channel) Hint use masking tape to get a straight bead

7.    The list archives show that some have used the rubber channel 05-01500

from    ACS for the windshield. How did you fasten the channel?

I set my wings to get everything lined up and the correct    angles, then removed them and installed the top window, windshield and    doors

8. Is there any problem with installing the top    window, bubble doors and

front windshield before installing the    wings?

Bob Spudis

Thanks in    advance for your ideas.



Jeff Beachy

CH701, 85%  he  es  Day       -->                - NEW MATRONICS WEB FORUMS -

bsp;    -->  ======================



	


 

  



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beachyjeff(at)juno.com
Guest

Posted: Fri Feb 23, 2007 5:29 am Post subject: Top Window, Bubble Doors and Windshield on 701

Some answers to your questions. Hopefully helpful.

  

 1. What is the top window made of, plexiglass or lexan? How about  the

windshield? Bubble doors?

 

 

 ans: The top window is made of lexan its tough in that it won't crack easy  but it will scratch easy.

 The windshield is plexiglass and will crack easy. Make sure to use the  special drill bits to go thru both of them though. You can drill through the  lexan/plexiglass right into the tubing by the way with these bits. The bubble  doors are plexiglass so be careful drilling also. For cutting plexiglass I used  a hand grinder with a fiberglass 

 disc. Cutting the lexan, I scored it with a utility knife and straight edge  and snapped the peices off.

  

 

2. The plans call for rivets for the top window. With all the talk  of

cracking lexan or plexiglass, is it wise to use screws instead of  rivets?

 

 

 ans: The lexan is very tough and the rivets work fine. You can use screws  but most of the installations

         I've seen are rivets. No  cracking at all. I did both installations this past summer in 95 deg  weather

         without issues. I'd be careful  working in cold weather with the windshield. My garage is so cold

         now that I don't even want to  look at the project.

  

 

3. Is the idea of the diagonal stiffener 7F12-3 to put a bow in the  top

window?

  

 ans: Yes it puts a bow in the top to keep it from flopping around, and  tightens it up. It looks good also.

 



4. Has anyone used some type of weatherstripping or silicone  between the

window and the upper tubes to keep out water?

  

 ans: I used silicone on the side tubes but it just squeezes out to the  sides of the tube. The window sits

 on the top of the tube which does not give a goood surface for silicon. A  very thin weather strip would be

 better or nothing at all since the wing root will cover this area when  installed. I would say most of the leakage will occur at the front corners  around the windshield/front wing mounts. I will use a cover when its  outside.



5. It seems like the rivets at the front upper tube/cabin  frame

connection will put pressure on the top window, since the cabin frame  and

rivets are higher than the upper tubes. The same goes for the  back

gusset, though the plans call for that area to be cut out.

 

 

 ans: This is an area where the instructions do not give any info. Since the  cabin frame to the tubes is an important structural area, I did not rivet thru  the lexan into the tubes here. At the front, just set the top 

 window on top of the rivets and rivet thru the side tubes only, a little  bowing or pressure but it doesn't 

 matter. 

 

6. What about silicone or weatherstripping for the front  windshield?

Roger at Zenith says his 701 leaks pretty badly during rain. Has  anyone

managed to keep the water out? 

  

 ans: I shopped around for the channel and got some useless stuff. I finally  got some from Wicks or Spruce

        that worked great. It makes the  windshield look very nice. The stuff they use on the Czec 701's is  really nice but I couldn't find it anywhere.

 



7. the list archives show that some have used the rubber channel  05-01500

from ACS for the windshield. How did you fasten the channel?

 

ans: I will look thru my receipts and see if I can get the part number  I used but that sounds familiar.

 I used polyzap from Tower Hobbies to fasten the channel to the windshied. I  would recommend using very

 fine sandpaper on the windshield to roughen it up a bit where the channel  contacts it inside and outside.

 This will allow the polyzap to bond better. Run a thin line inside the  channel and install it quickly, and don't 

 cut the channel to exact size before, trim it off at the ends after  installation. This is one of those moments

 of high stress to not get the stuff all over the windshield. After the  windshield was screwed down I ran a line

 of weather stripping adhesive under the channel where it contacts the  airframe.

 

8. Is there any problem with installing the top window, bubble doors  and

front windshield before installing the wings?

  

 ans: I hope not because I installed mine. You can tape poster board on the  top window while installing the

 wing root to keep from damaging it.

 Jeff, I'll post the pics I have of this installation right away on my  website http://701builder.com so you can get  an idea of what I did at least. The site is still under construction, its more  of a photo essay of what I 

 have done, and I'll be adding descriptions of work later. I'll try to get  it up there in the morning. It will be under the category fuselage. Making a  website is definately time consuming.

  

 Hope some of this helps for now.

  

 Brian

   [quote][b]

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petes15515(at)msn.com
Guest

Posted: Fri Feb 23, 2007 11:00 am Post subject: Top Window, Bubble Doors and Windshield on 701

Jeff...I'm at the same point in the construction process..I've got some 

tinted .080" lexan for the top and was contemplating how best to seal it. 

I'm thinking maybe a thin automotive type rubber channel or something 

similar sitting on the edge of the door channel might work. I'm also 

thinking that ss screws / cup washers might work better..in one of the ZAC 

pics it show this so at some point I guess they thought it was good also !

Happy building..Peter in Ont. Canada. 80 % scratch built.

 	  Quote: 	
		  From: Jeffrey A Beachy <beachyjeff(at)juno.com>

Reply-To: zenith-list(at)matronics.com

To: zenith-list(at)matronics.com

Subject: Top Window, Bubble Doors and Windshield on 701

Date: Thu, 22 Feb 2007 15:43:29 -0500






I am ready to install my top window, Zenith bubble doors and the

windshield on my CH701. I have several questions for those who have

completed these tasks:



1. What is the top window made of, plexiglass or lexan? How about the

windshield? Bubble doors?



2. The plans call for rivets for the top window. With all the talk of

cracking lexan or plexiglass, is it wise to use screws instead of rivets?



3. Is the idea of the diagonal stiffener 7F12-3 to put a bow in the top

window?



4. Has anyone used some type of weatherstripping or silicone between the

window and the upper tubes to keep out water?



5. It seems like the rivets at the front upper tube/cabin frame

connection will put pressure on the top window, since the cabin frame and

rivets are higher than the upper tubes. The same goes for the back

gusset, though the plans call for that area to be cut out.



6. What about silicone or weatherstripping for the front windshield?

Roger at Zenith says his 701 leaks pretty badly during rain. Has anyone

managed to keep the water out?



7. The list archives show that some have used the rubber channel 05-01500

from ACS for the windshield. How did you fasten the channel?



8. Is there any problem with installing the top window, bubble doors and

front windshield before installing the wings?



Thanks in advance for your ideas.



Jeff Beachy

CH701, 85% completed






	


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