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fderfler(at)gmail.com
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 Posted: Thu Apr 16, 2009 4:18 am Post subject: Mass Balanced Ailerons |
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The article on aileron balancing referenced here by Eddie Seve (thank you Eddie) and written by Tony Bingelis http://www.fly-imaa.org/imaa/hfarticles/howto/v6-1-36.html is very interesting. It describes the practice of hand balancing an aileron set for a specific airplane taking into consideration the paint, etc on the aileron. Interesting reading and highly recommended.
An A&P I consulted yesterday told me that some light aircraft don't use a weight suspended on an arm as I'm used to seeing on Pipers, but rather use a rod of lead on the trailing edge of the aileron. One can hope it's that simple.
Finally, it was interesting to see, as reported by EAA, that the FAA wasn't so quick to comply with the NTSB recommendation. http://www.eaa.org/news/2009/2009-04-15_zodiac.asp--
If you read the slightly different report below from AvWebBiz, a different FAA spokesperson was even stronger to push back. The link is http://www.avweb.com/eletter/archives/bizav/1351-full.html#200146
Is the FAA AHEAD of the NTSB?
.. FAA RESPONDS TO ZODIAC CONCERNS
The FAA is already looking into concerns about all versions of the Zodiac aircraft, which were raised at an industry meeting back in February, FAA spokeswoman Laura J. Brown told AVweb on Tuesday, but she added that the agency has no immediate plans to call for the airplanes to be grounded. "The manufacturer already has told owners to check the aileron control cable tensions," she said. The FAA has formed a special review team with members from the FAA and the industry to investigate the problem. Brown added that the FAA has told the ASTM that it should conduct a review of its LSA standards regarding aerodynamic flutter. More...
-- Frank Derfler,
AMD-made 601XL in the FL Keys
See my new Novel, "A Glint in Time" at http://GreatGuyBooks.com.
See my discussion of All the Guy Toys that aren't (clearly) illegal or (blatantly) immoral at http://mostlyflying.com
Anybody who READS (anybody out there?) See www.greatguybooks.com
[quote][b]
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rene(at)felker.com
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| Posted: Thu Apr 16, 2009 5:11 am Post subject: Mass Balanced Ailerons |
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My RV-10 has a steel pipe in the leading edge of the aileron…..simple. Per plans.
Rene' Felker
RV-10 N423CF Flying
801-721-6080
From: owner-zenith601-list-server(at)matronics.com [mailto:owner-zenith601-list-server(at)matronics.com] On Behalf Of Frank Derfler
Sent: Thursday, April 16, 2009 6:18 AM
To: zenith601-list(at)matronics.com
Subject: Mass Balanced Ailerons
The article on aileron balancing referenced here by Eddie Seve (thank you Eddie) and written by Tony Bingelis http://www.fly-imaa.org/imaa/hfarticles/howto/v6-1-36.html is very interesting. It describes the practice of hand balancing an aileron set for a specific airplane taking into consideration the paint, etc on the aileron. Interesting reading and highly recommended.
An A&P I consulted yesterday told me that some light aircraft don't use a weight suspended on an arm as I'm used to seeing on Pipers, but rather use a rod of lead on the trailing edge of the aileron. One can hope it's that simple.
Finally, it was interesting to see, as reported by EAA, that the FAA wasn't so quick to comply with the NTSB recommendation. http://www.eaa.org/news/2009/2009-04-15_zodiac.asp--
If you read the slightly different report below from AvWebBiz, a different FAA spokesperson was even stronger to push back. The link is http://www.avweb.com/eletter/archives/bizav/1351-full.html#200146
Is the FAA AHEAD of the NTSB?
.. FAA RESPONDS TO ZODIAC CONCERNS
The FAA is already looking into concerns about all versions of the Zodiac aircraft, which were raised at an industry meeting back in February, FAA spokeswoman Laura J. Brown told AVweb on Tuesday, but she added that the agency has no immediate plans to call for the airplanes to be grounded. "The manufacturer already has told owners to check the aileron control cable tensions," she said. The FAA has formed a special review team with members from the FAA and the industry to investigate the problem. Brown added that the FAA has told the ASTM that it should conduct a review of its LSA standards regarding aerodynamic flutter. More...
-- Frank Derfler,
AMD-made 601XL in the FL Keys
See my new Novel, "A Glint in Time" at http://GreatGuyBooks.com.
See my discussion of All the Guy Toys that aren't (clearly) illegal or (blatantly) immoral at http://mostlyflying.com
Anybody who READS (anybody out there?) See www.greatguybooks.com
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Tim Juhl
Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan
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| Posted: Thu Apr 16, 2009 5:44 pm Post subject: Re: Mass Balanced Ailerons |
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My Cessna 172 had a lead strip riveted along the lower front edge of the aileron. I believe the geometry was such that the weight was forward of the hinge during at least part of it's travel.
Tim
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_________________
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CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Almost done! It'll fly in spring! |
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hansriet
Joined: 09 Feb 2007
Posts: 93
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| Posted: Fri Apr 17, 2009 3:20 am Post subject: Re: Mass Balanced Ailerons |
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All the mass of the Zodiac aileron is located behind the hinge, so an arm is necessary to balance it.
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