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CH-701 Fiberglass Wing Tip Fitting Problem

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dplozay(at)cox.net
Guest

Posted: Mon Jul 10, 2006 10:05 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Do any of the 701 builders have advise on getting  the fiberglass wing tip to fit? I'm having difficulty getting both the  bottom and top aft edges of the tip to fit flush with the wing (see photo). I'm  beginning to think I was shipped a defective part. All comments are welcome and  appreciated.

  

 Thanks,

  

 David

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naumuk(at)alltel.net
Guest

Posted: Mon Jul 10, 2006 10:52 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Dave-

     Wow- I thought I had problems  with my HDS tips! It looks like you either trimmed them too far, or that you got  tips for something other than a 701. Check the plans and pictures.

     Also, there's a ton of stuff in  the archives from a year or two ago under "Fiberglass Tip Ribs" on how to deal  with the miserable SOBs. Rots a ruck!

                                                                 Bill

                                 do  not archive

     

     

 [quote]   ---

planejim(at)bellsouth.net
Guest

Posted: Mon Jul 10, 2006 11:09 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

David,

  

 I'm helping a friend build a 701. He did the  first wing basic structure. I came into the picture to do the wing tip and the  wigh root. Fitting the fiberglass tip was a real pain in the #*&%(at) neck.  I've done this airplane building a bunch and the tips on my 601HD were much  easier than this 701. From what I see in your picture, you will have to really  push the fiberglass tip forward a bunch. I found it hard to mark an index point  that I could use on the leading edge wing skin and the fiberglass tip for  repeatability when fitting. Drilling the rivet holes so that they fell in  the center of the radius all the way around took a lot of time.  If I  remember correctly ( it's been a couple of months since we built that first wing  - haven't done the other one yet ) we had to cut some off the edges, near the  top aft end of the Fiberglass tip. It took us more than a half day just to  fit and drill up the tip. It looked O.K. when we got done.

  

 When we started, I was sure it would never fit!  But we did it. Don't give up.

 [quote]   ---

p.mulwitz(at)worldnet.att
Guest

Posted: Mon Jul 10, 2006 1:55 pm Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

That wing tip looks pretty hopeless to me.  Have you considered laying up a new one?



 In one case on my plane (a 601XL) I wound up cutting a slit in the rear half of the fiberglass so I could make it stretch to fit the metal and then laid some new glass and epoxy in the opening.  I only had about a 1/4 inch to fill, but it looks like you have a lot more than that to deal with.



 

 Paul

 XL fuselage

 do not archive



 

  	  Quote: 	
		  Do any of the 701 builders have advise on getting the fiberglass wing tip to fit? I'm having difficulty getting both the bottom and top aft edges of the tip to fit flush with the wing (see photo). I'm beginning to think I was shipped a defective part. All comments are welcome and appreciated.

  

 Thanks,

  

 David

John Bolding

Joined: 23 May 2006
Posts: 281

Posted: Mon Jul 10, 2006 2:06 pm Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Nice pic!   Doubt that any parts from the  mold that produced this tip will be any different than this one, there is a way  to fix it and it will look perfect but is not something I can describe by  typing, if you will call me i'll be happy to walk you thru it.

 Have done LOTS of FRP work . this isn't a big deal  to fix properly.  Kinda gets your juices flowing however when parts  you pay good money for don't fit any better than this. email me off list and  I'll send you my #   LOW&SLOW   John

 jnbolding1"at"teleshare.net (jnbolding1(at)teleshare.net)    replace the "at" with (at)

  

 [quote]   ---

aircraft(at)czaw.cz
Guest

Posted: Tue Jul 11, 2006 1:26 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Please learn some internet protocol. I am sure some listers have slow dial-up or roaming e-mail and would not appreciate a 2mb photo.  

   

Do not archive    

   

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

 Sent: Monday, July 10, 2006 8:03 PM

 To: zenith-list(at)matronics.com

 Subject: CH-701 Fiberglass Wing Tip Fitting Problem   

  

     

Do any of the 701 builders have advise on getting the fiberglass wing tip to fit? I'm having difficulty getting both the bottom and top aft edges of the tip to fit flush with the wing (see photo). I'm beginning to think I was shipped a defective part. All comments are welcome and appreciated.  

    

   

    

Thanks,  

    

   

    

David

TH-SR

Joined: 13 Jan 2006
Posts: 22
Location: WI

Posted: Tue Jul 11, 2006 2:10 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

I agree.

  

 Dave,  your problem is real, your picture was great in showing it, and this  list is the place to pose the question. However, that size attachment is a  killer for those with dial up, and for the list administrator considering  space required on his server for archive  purposes.

  

 There are several ways to shrink the size of your  photos for future posts.  To prove my  point, I took  the liberty of making a few adjustments to your photo, and have reduced its file  size dramatically (2560 KB down to 12 KB)  without losing much impact.  Feel  free to email me off list if you'd like to know how I made the  adjustments.

  

 Todd Henning

  

 Do Not  Archive

 

   From: owner-zenith-list-server(at)matronics.com  [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Chip W  Erwin

Sent: Tuesday, July 11, 2006 4:17 AM

To:  zenith-list(at)matronics.com

Subject: RE: CH-701 Fiberglass  Wing Tip Fitting Problem 

 

  

Please learn some  internet protocol. I am sure some listers have slow dial-up or roaming e-mail  and would not appreciate a 2mb photo. 

  

Do not  archive  

  

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

Sent: Monday, July 10, 2006 8:03  PM

To:  zenith-list(at)matronics.com

Subject: CH-701 Fiberglass  Wing Tip Fitting Problem 

 

   

Do any of the 701 builders have  advise on getting the fiberglass wing tip to fit? I'm having difficulty getting  both the bottom and top aft edges of the tip to fit flush with the wing  (see photo). I'm beginning to think I was shipped a defective part. All comments  are welcome and appreciated.

  

 

  

Thanks,

  

 

  

David

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_________________
Todd
CH701

Jari Kaija

Joined: 23 Feb 2006
Posts: 69

Posted: Tue Jul 11, 2006 2:36 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

> Do any of the 701 builders have advise on  getting the fiberglass 

 > wing tip to fit? I'm having difficulty getting both the bottom and 

 > top aft edges of the tip to  fit flush with the wing (see photo).  

 > I'm beginning to think I was shipped a  defective part.

  

 Surely looks like, that you have tip from some  other zenair's plane!

  

 http://www.project-ch701.net/ch701_wings/DSC03804.JPG

 http://www.project-ch701.net/ch701_wings/DSC03805.JPG

 http://www.project-ch701.net/ch701_wings/DSC03806.JPG

 http://www.project-ch701.net/ch701_wings/DSC03807.JPG

 http://www.project-ch701.net/ch701_wings/DSC03808.JPG

 http://www.project-ch701.net/ch701_wings/DSC03809.JPG

 http://www.project-ch701.net/ch701_wings/DSC03810.JPG

 http://www.project-ch701.net/ch701_wings/DSC03811.JPG

  

 I ordered mine from "Czech Aircraft Works, s.r.o. (CZAW)"

 and they fit perfectly.

rjscep(at)yahoo.com
Guest

Posted: Tue Jul 11, 2006 4:50 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

 	  Quote: 	
		   Those photos are perfect, nice closeups and detail.

 I will check out that outfit and order mine.Thanx

 Bob S.....Do not archive  


	


--- Jari Kaija <jari.kaija(at)pp.inet.fi> wrote:



 	  Quote: 	
		   > Do any of the 701 builders have advise on getting

 the fiberglass 

 > wing tip to fit? I'm having difficulty getting

 both the bottom and 

 > top aft edges of the tip to fit flush with the

 wing (see photo). 

 > I'm beginning to think I was shipped a defective

 part.

 

 Surely looks like, that you have tip from some other

 zenair's plane!

 



http://www.project-ch701.net/ch701_wings/DSC03804.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03805.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03806.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03807.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03808.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03809.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03810.JPG
	


 	  Quote: 	
		  

http://www.project-ch701.net/ch701_wings/DSC03811.JPG
	


 	  Quote: 	
		   

 I ordered mine from "Czech Aircraft Works, s.r.o.

 (CZAW)"

 and they fit perfectly.

 


	




__________________________________________________

Kemter

Joined: 18 Jun 2006
Posts: 12
Location: Cibolo, TX

Posted: Tue Jul 11, 2006 5:04 am Post subject: Re: CH-701 Fiberglass Wing Tip Fitting Problem

David,



  Out of curiosity was that a factory wing kit or scratch built?  Surely those wingtips can't be the correct ones.?.? Thought about sending them back and asking for some new ones?



Jim

_________________
Jim Kemter
Cibolo, TX

rstone4(at)hot.rr.com
Guest

Posted: Tue Jul 11, 2006 7:07 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Todd,

      Weather or not  David wants to know how to shrink a picture I am sure some of the rest of do so  please post this information on the Zenith-List by all means.  Pictures are  worth a thousand words and should be used to explain anything compliated however  a very large picture takes forever to down load unless one has a high speed  server like I do.  I have Road Runner and web sites, attached pictures, etc  come up on screen at once, but all members do not have a high speed  system.  

  

 Bob Stone

 [quote]   ---

admin(at)arachnidrobotics
Guest

Posted: Tue Jul 11, 2006 7:41 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

    I'd like to suggest that internet protocol is evolving as quickly as the internet itself.  The Matronics lists are losing people as much for a LACK of visual content (ie-Good Pics) as they would if everyone posted a daily pic.  

     I really like the Matronics lists for the advice and camaraderie present, but it's nearly the ONLY aviation list out here that exists almost 100% in text only form.  Hey, radio was good, but TV conveys the message MUCH quicker and with MUCH more clarity.  Even a slow DSL line will download a 2MB image in seconds.  

     For those that insist on crawling through the phone lines (or those in technologically challenged countries), a simple adjustment of their email application will maintain this thoroughly frustrating text only experience.  

 

 Tom Henderson

 McMinnville,  Oregon

 971-241-5035

Carving out my 601XL from scratch,

 Fuselage nearly complete

 

 Do not archive

  

Chip W Erwin <aircraft(at)czaw.cz> wrote: 	  Quote: 	
		              <![endif]-->       <![endif]-->     Please learn some internet protocol. I am sure some listers have slow dial-up or roaming e-mail and would not appreciate a 2mb photo.

   

  Do not  archive

     

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

 Sent: Monday, July 10, 2006 8:03 PM

 To: zenith-list(at)matronics.com

 Subject: CH-701 Fiberglass Wing Tip Fitting Problem 

  

   

    Do any of the 701 builders have advise on getting the fiberglass wing tip to fit? I'm having difficulty getting both the bottom and top aft edges of the tip to fit flush with the wing (see photo). I'm beginning to think I was shipped a defective part. All comments are welcome and appreciated.

  

     

  

    Thanks,

  

     

  

    David

randy(at)shadycreekoutlaw
Guest

Posted: Tue Jul 11, 2006 8:31 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

Speaking of a daily pic:  Here's one I took  yesterday that I'm proud of...  Finally, I've completed my spars...   After the attachment holes get drilled through the mains and center spar, I can  start assembly!

  

 Thanks,

  

 Randy

 XL Wings - Plans Only

 http://www.n344rb.com

  

  

 [quote]   ---

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ch601xl(at)gmail.com
Guest

Posted: Tue Jul 11, 2006 8:31 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

I will post how to do this on my site in the next hour or two using a free program with step by step pictures. You will be able to download the program as well.  http://ch-601xl.com



 On 7/11/06, Robert L. Stone <rstone4(at)hot.rr.com (rstone4(at)hot.rr.com)> wrote:[quote]        Todd,

      Weather or not  David wants to know how to shrink a picture I am sure some of the rest of do so  please post this information on the Zenith-List by all means.  Pictures are  worth a thousand words and should be used to explain anything compliated however  a very large picture takes forever to down load unless one has a high speed  server like I do.  I have Road Runner and web sites, attached pictures, etc  come up on screen at once, but all members do not have a high speed  system.  

  

 Bob Stone

  	  Quote: 	
		  	


   ---

ch601xl(at)gmail.com
Guest

Posted: Tue Jul 11, 2006 10:02 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

OK it's up now.

do not archive



On 7/11/06, Christopher Smith <ch601xl(at)gmail.com (ch601xl(at)gmail.com)> wrote:[quote] I will post how to do this on my site in the next hour or two using a free program with step by step pictures. You will be able to download the program as well.   http://ch-601xl.com

 On 7/11/06, Robert L. Stone <rstone4(at)hot.rr.com  (rstone4(at)hot.rr.com)> wrote:[quote]        Todd,

      Weather or not  David wants to know how to shrink a picture I am sure some of the rest of do so  please post this information on the Zenith-List by all means.  Pictures are  worth a thousand words and should be used to explain anything compliated however  a very large picture takes forever to down load unless one has a high speed  server like I do.  I have Road Runner and web sites, attached pictures, etc  come up on screen at once, but all members do not have a high speed  system.  

  

 Bob Stone

  	  Quote: 	
		  	


   ---

jf701(at)sbcglobal.net
Guest

Posted: Tue Jul 11, 2006 7:55 pm Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

"  Do any of the 701 builders have advise on getting the fiberglass wing

      tip to fit? I'm having difficulty getting both the bottom and top aft

      edges of the tip to fit flush with the wing..."



David:

Haven't seen the photo you mentioned, but just about everybody runs into 

problems with these wingtips.  I decided the main thing is to

make sure you have the tip rotated back far enough so the bottom of the 

airfoil remains flat; i.e, the leading edge doesn't sag a little bit at the 

end.

On the first tip I did, I got everything cocked around so the skin followed 

the fiberglass leading edge perfectly, but I ended up with the wingtip

pointing down just a bit from the rest of the wing.   On the next wing, I 

made sure the bottom edge was flat and accepted the 1/4" gap

between the skin and the fiberglass that resulted at the nose.  Filled it in 

with fiberglass filler from West Marine, which works real good for such 

things.



As one of the other posters mentioned, a carefully applied heat gun works 

great on the fiberglass tip to flex it a little where needed.



John Flavin

Overland Park, KS

CH701 kitbuild--all airfoils and control surfaces done and project in 

storage while looking for a new shop.

Rick Roberts

Joined: 10 Jan 2006
Posts: 28
Location: Orlando, FL

Posted: Wed Jul 12, 2006 2:18 am Post subject: CH-701 Fiberglass Wing Tip Fitting Problem

David,

   

  John and I used the same approach.  My wing tips actually fit pretty well.  I hit a major snag on the slat tips...same approach though....

   

  Low and slow...

   

  DO NOT ARCHIVE



jf701(at)sbcglobal.net wrote:

   	  Quote: 	
		  --> Zenith-List message posted by: 



" Do any of the 701 builders have advise on getting the fiberglass wing

tip to fit? I'm having difficulty getting both the bottom and top aft

edges of the tip to fit flush with the wing..."



David:

Haven't seen the photo you mentioned, but just about everybody runs into 

problems with these wingtips. I decided the main thing is to

make sure you have the tip rotated back far enough so the bottom of the 

airfoil remains flat; i.e, the leading edge  doesn't sag a little bit at the 

end.

	




Rick

Sharpsburg, GA. USA

http://www.n701rr.com

_________________
Low & Slow,
Rick
Orlando, FL. USA
www.n701rr.com

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