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Kolb-List:Wing Bracing

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ElleryWeld(at)aol.com
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Posted: Wed Oct 10, 2007 3:05 am Post subject: Kolb-List:Wing Bracing

John or anyone Got a picture of where to install the 1/2" aluminum angle bracing in the the wings ?

 I would like to do this before I start the covering Job and if theres anything else that needs attention I would like to hear from you about it

  

 Ellery in Maine Building Mk3X #00011

  

 do not archive





  [quote][b]

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Rick Lewis

Joined: 03 Jul 2007
Posts: 122
Location: Kingston, Tn.

Posted: Wed Oct 10, 2007 1:49 pm Post subject: Re: Kolb-List:Wing Bracing

I am also building the MK3x and have taken many pictures of the wing that Brian is building right now.  I'm sure these pictures would be of help to you.  Send me your e-mail address and I will get them to you.  I will be leaving on a trip tomorrow and will be gone for a full week, so I will need to hear from you tonight if you want the pictures right now.  Just a darn shame we don't have plans to build by.



Rick Lewis   cktman(at)hughes.net

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JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Wed Oct 10, 2007 4:00 pm Post subject: Re: Kolb-List:Wing Bracing

Here are some pictures of the Angle Aluminum wing bracing.  Don't forget to put some extra bracing on the wingtips also, they are prone to flutter at high speeds in the stock configuration.  



Mike

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Kolb MK-III Xtra, 912-S

jlsk1(at)frontiernet.net
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Posted: Wed Oct 10, 2007 4:44 pm Post subject: Kolb-List:Wing Bracing

I must have missed something somewhere, Why is it that all of those ribs in 

that wing shot have angle bracing on them? Is that called for in the plans? 

I understand why the outboard rib gets it, but why all the others?



Jim

---

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JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Wed Oct 10, 2007 8:39 pm Post subject: Re: Kolb-List:Wing Bracing

The bracing makes for a stiffer, stronger wing that will handle many years of fatigue better.   If I ever get in a monster wake, or other event that puts a huge amount of G's on the plane, I will be very glad to have the extra bracing throughout the wing, not just the tips.  The loads are carried by the ribs on the entire wing, not just the tips.   Its only very little extra weight, maybe a couple pounds, and its well worth doing.   



Mike

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Kolb MK-III Xtra, 912-S

JetPilot

Joined: 10 Jan 2006
Posts: 1246

Posted: Wed Oct 10, 2007 8:45 pm Post subject: Re: Kolb-List:Wing Bracing

P.S.   I have to give John Hauck credit for that mod, along with several others that will make the MARK III an airplane that can fly for thousands of hours without structural fatigue.   I think he has about 2500 hours on his MK III ???  John has been building and flying all kinds of Kolbs since the very beginning, and knows many of the areas that need to be strengthened if you will be doing a lot of hard flying, and don't want fatigue.



Mike

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Kolb MK-III Xtra, 912-S

ElleryWeld(at)aol.com
Guest

Posted: Thu Oct 11, 2007 4:02 am Post subject: Kolb-List:Wing Bracing

Thanks Mike

  

 Ellery in Maine building MK3Xtra 

  

 Do not archive



See what's ne [quote][b]

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jb92563

Joined: 23 Mar 2007
Posts: 314
Location: Southern California

Posted: Tue Oct 23, 2007 11:35 am Post subject: Re: Kolb-List:Wing Bracing

Rib stitching will also help but those angle braces are some very good insurance.



I know those ribs are weak laterally due to the rivet holes in the upper curvature as I found out first hand from some over shrunk Poly Fiber so the extra bracing is a good thing.

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Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
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