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[Fwd: FW: LAA Mod - Aileron Balance question]

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broberts103

Joined: 27 Jul 2009
Posts: 7
Location: Texas

Posted: Mon Nov 09, 2009 7:01 am Post subject: [Fwd: FW: LAA Mod - Aileron Balance question]

[quote]   

   

   

   I have seen the docs and read the various reports and notices.

   I am glad to see the repairs (upgrades?) coming from Zenith although I expect they were released primarily in reaction to the Arkansas incident and that is too bad.

    

   Regarding the LAA mod to Mass balance the ailerons, CH says in Question #8 of his Q&A that we should balance them per the LAA design just because it will make flutter concerns a thing of the past....   The LAA says in their Mod/162B/004 under the applicability section (#2) that the counterweight design is not suitable for flexible skin hinged ailerons.

    

   I expect to hear more from Zenith but, at this point, is it logical that per both instructions, only "piano hinged" ailerons should be balanced?

    

   Bill Roberts

   N723R (Reserved)

   building 601xl 6-6415

 [b]

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Bill Roberts
Zodiac 601 XL
Wings Done, Working on Fuselage

leinad

Joined: 19 Sep 2006
Posts: 283
Location: Central Virginia

Posted: Mon Nov 09, 2009 4:55 pm Post subject: Re: [Fwd: FW: LAA Mod - Aileron Balance question]

Or that the flex hinges have just become obsolete.

I'm still waiting for an answer to this one too.

Dan



[quote="broberts103"] 	  Quote: 	
		     

   

   

   I have seen the docs and read the various reports and notices.

   I am glad to see the repairs (upgrades?) coming from Zenith although I expect they were released primarily in reaction to the Arkansas incident and that is too bad.

    

   Regarding the LAA mod to Mass balance the ailerons, CH says in Question #8 of his Q&A that we should balance them per the LAA design just because it will make flutter concerns a thing of the past....   The LAA says in their Mod/162B/004 under the applicability section (#2) that the counterweight design is not suitable for flexible skin hinged ailerons.

    

   I expect to hear more from Zenith but, at this point, is it logical that per both instructions, only "piano hinged" ailerons should be balanced?

    

   Bill Roberts

   N723R (Reserved)

   building 601xl 6-6415

 [b]

- The Matronics Zenith-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Zenith-List

_________________
Scratch building XL with Corvair Engine

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