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CH801 WIng Incidence

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n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Mon Jun 30, 2008 6:11 am Post subject: CH801 WIng Incidence

I cannot find any mention about setting wing incidence when hanging the

wings in the CH801 docs. Are they just hung on the attach fittings with the

front and rear spar attach fitting simply centered? 



I would assume that the fueslage would be leveled fore and aft, and then 

the wings adjusted to level front to rear to match. However if this is the

intent, it seems there should be some reference locations on the wing

to use to verify it.



Thanks,

Jeff

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n801bh(at)netzero.com
Guest

Posted: Mon Jun 30, 2008 11:31 am Post subject: CH801 WIng Incidence

Ben Haas

N801BH

www.haaspowerair.com



-- "n85ae" <n85ae(at)yahoo.com> wrote:

--> Zenith701801-List message posted by: "n85ae" <n85ae(at)yahoo.com>



I cannot find any mention about setting wing incidence when hanging the

wings in the CH801 docs. Are they just hung on the attach fittings with the

front and rear spar attach fitting simply centered? 



I would assume that the fueslage would be leveled fore and aft, and then 

the wings adjusted to level front to rear to match. However if this is the

intent, it seems there should be some reference locations on the wing

to use to verify it.



Thanks,

Jeff





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=190547#19================================================================================================;       - MATRONICS WEB FORUMS -

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n801bh(at)netzero.com
Guest

Posted: Mon Jun 30, 2008 11:31 am Post subject: CH801 WIng Incidence

Thats is what I did on my 801. The pad you have to drill to attach the front and rear spar is kinda small and leaves very little room for adjustment. The real issue is edge distance and this is a HIGH stress area so I centered mine and it works ok. Most of us 801 builders had a forward swept issue when we initally mounted the wings. I would bet yours will start out that way too. 

do not archive

Ben Haas

N801BH

www.haaspowerair.com



-- "n85ae" <n85ae(at)yahoo.com> wrote:

--> Zenith701801-List message posted by: "n85ae" <n85ae(at)yahoo.com>



I cannot find any mention about setting wing incidence when hanging the

wings in the CH801 docs. Are they just hung on the attach fittings with the

front and rear spar attach fitting simply centered? 



I would assume that the fueslage would be leveled fore and aft, and then 

the wings adjusted to level front to rear to match. However if this is the

intent, it seems there should be some reference locations on the wing

to use to verify it.



Thanks,

Jeff





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=================================================================================================bsp;        - MATRONICS WEB FORU================================================sp;                       &nb===============================================

  



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  [quote][b]

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n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Mon Jun 30, 2008 12:58 pm Post subject: Re: CH801 WIng Incidence

That's what I thought, I talked to Caleb at Zenith, and he said the wing

actually has 3 degrees which is built-in via the welded U at the forward

attach. He said to level the fueslage, clamp the wings, and check for

3 degrees lift in the leading edge. Measured against the flattest part

of the bottom of the wing.



Probably not super critical as long as the wings are the same angle,

and close to the 3 degrees. A tad off positive or negative probably goes

away with trim/cg/etc. 



How did you fix the leading edge sweep? Just progressive trimming of

the rear spar end?



Jeff

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n801bh(at)netzero.com
Guest

Posted: Mon Jun 30, 2008 3:01 pm Post subject: CH801 WIng Incidence

Yes.. To fix the sweep just remove a little off the end of the rear spar. You will have to trim the wing skin in that area too. In hindsight I probably should have left mine slightly swept cause it would have helped my heavier then normal front end.. 

do not archive

Ben Haas

N801BH

www.haaspowerair.com



-- "n85ae" <n85ae(at)yahoo.com> wrote:

--> Zenith701801-List message posted by: "n85ae" <n85ae(at)yahoo.com>



That's what I thought, I talked to Caleb at Zenith, and he said the wing

actually has 3 degrees which is built-in via the welded U at the forward

attach. He said to level the fueslage, clamp the wings, and check for

3 degrees lift in the leading edge. Measured against the flattest part

of the bottom of the wing.



Probably not super critical as long as the wings are the same angle,

and close to the 3 degrees. A tad off positive or negative probably goes

away with trim/cg/etc. 



How did you fix the leading edge sweep? Just progressive trimming of

the rear spar end?



Jeff





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=190612#190612===============================================  



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  [quote][b]

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