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Extended wing

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stepinwolf

Joined: 21 Jan 2008
Posts: 133
Location: Canada

Posted: Sun May 18, 2008 3:51 am Post subject: Extended wing

I have been told that Chris Heinz has written, or approved of, a slight increase in the wingspan as a mod for the 701.  Can anyone point me in the right direction to the article, mod, or where it was published. ?



Thank you



Bob the 701 scratch

Three Rivers, Quebec



# 7-7143

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Long wing + vga's, = lo & slo

rbjjr

Joined: 18 Mar 2007
Posts: 36

Posted: Mon May 19, 2008 12:58 am Post subject: Re: Extended wing

I have wondered the same.  Is there such a thing, officially?  Somewhere I have seen a builder refer to his 701 as such and such "long wing" in a post, I think.



Thanks



Burke Johnson

CH701



DO NOT ARCHIVE

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John Bolding

Joined: 23 May 2006
Posts: 281

Posted: Mon May 19, 2008 4:46 am Post subject: Extended wing

Yes and no I guess,  I have a COPY of a sketch that another builder was kind 

enough to send me showing the spar doubler mod that makes a 12" extension 

possible.   The drawing is signed by Chris.  I am sorry I don't remember who 

sent it to me (memory is the second thing to go) but the drawing was made 

for him so it hasn't been handed down too many times.

I'll be glad to send it to someone who can scan it and put it in the files . 

I don't have that capability.

I ASSUME that the news that the 750 was also gonna be avail as plans built 

made it to the list ??

LO&SLO John



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stepinwolf

Joined: 21 Jan 2008
Posts: 133
Location: Canada

Posted: Mon May 19, 2008 9:01 am Post subject: Extended wing

John,

  

 Since I have not as yet started cutting up the aluminum for my 701, to  say that I would be interested in knowing exactly where you heard about the  availability of the 750 in "plans " form, would be an   understatement.  Can you be more precise in your following statement and I  quote " I ASSUME that the news that the 750 was also going  to be avail as plans built made it to the list ?? unquote, regarding where you obtained the  information.

  

 From everything I ever heard, the exact opposite should be the case.

  

 Bob the 701 scratch

 Three Rivers, Quebec

  

  

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_________________
Long wing + vga's, = lo & slo

John Bolding

Joined: 23 May 2006
Posts: 281

Posted: Mon May 19, 2008 9:46 am Post subject: Extended wing

Bob,  As stated in my previous post if the  fellow that Sebastian made this statement to  wants to chime in here he can.   this fellow called me on my cell as  soon as he stepped out of the tent at SunFun to tell me , I was skeptical as are  you and stated the same reasons as everybody else has. The guy that  was talking to Sebastian is a very hands on kinda guy and REALLY pays  attention. No chance he misunderstood in my view,  also as I said before,  hope they don't change their mind.

 You now know as much about it as I do.  If I say anything else I'm  making it up.  LO&SLO   John

  

   

  

  

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dpfisher(at)scottsbluff.n
Guest

Posted: Mon May 19, 2008 8:37 pm Post subject: Extended Wing

Hi ,

I asked Chris several years ago about extending each wing by a foot for 

high altitude operation.  He replied "If you increase the wing span you'll 

have to reinforce the spar, which is heavier and cancels some of the 

increased span!

To retain full strength the web doubler 7-V-2, 6SP should be t=.040 

(instead .032) and longer."



He included a sketch showing 7-V-2 longer both inboard and outboard by 80 

mm in each direction for a total of 160mm longer.

I've not yet done the mod but am considering it.  If you're considering 

longer wings I'd suggest you discuss it with the good folks at the Zenith 

factory as I'm sure they'll  have more current and complete information.



Dave, 701 with A80-8 Continental- still slowly building!

 	  Quote: 	
		  From: "stepinwolf" <robert.pelland(at)cgocable.ca>

I have been told that Chris Heinz has written, or approved of, a slight 

increase

in the wingspan as a mod for the 701.

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