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fderfler(at)gmail.com
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 Posted: Thu Apr 16, 2009 7:34 am Post subject: An example of 601XL mass balance on YouTube |
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This video has been viewed over 2000 times, so it is nothing new, but I don't remember it being mentioned here. I got the lead from a "list lurker" named Brad. Thank you, Brad. This video shows that a weight can be added to the 601XL quite nicely. See http://www.youtube.com/watch?v=q_D4bt0guvM
--
Frank Derfler
601XL in the Florida 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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psm(at)att.net
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| Posted: Thu Apr 16, 2009 8:05 am Post subject: An example of 601XL mass balance on YouTube |
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Hi Frank,
That balance weight looks very nice, but I'm afraid it raises as many questions as it answers.
It appears the rear channel has been nearly completely removed where the balance bar goes through it. What impact does this have on the strength of the wing?
Considering the color and welding shown it appears steel was used for most or all of the parts. Does this heavy material add a significant load to the rest of the wing design? Is all this steel really necessary to prevent flutter?
Does this prevent aileron flutter? Does this prevent wing flutter?
I truly hope we get a competent design from one of the engineers actually responsible for the Zodiac XL. Hopefully this would be Chris Heintz, but it might be one of the many other engineers who work on the Zenith drawings. I have no idea how to get Zenith/Zenair to come up with this design since they seem to be dragging their feet at every step.
Paul
XL grounded
At 08:30 AM 4/16/2009, you wrote:
[quote] I got the lead from a "list lurker" named Brad. Thank you, Brad. This video shows that a weight can be added to the 601XL quite nicely.
See http://www.youtube.com/watch?v=q_D4bt0guvM
-- [b]
| | - The Matronics Zenith601-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:
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craig(at)craigandjean.com
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| Posted: Thu Apr 16, 2009 8:27 am Post subject: An example of 601XL mass balance on YouTube |
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Hmm, seems they had some flutter at “150 mph” (!)
-- Craig
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 9:30 AM
To: zenith601-list(at)matronics.com
Subject: An example of 601XL mass balance on YouTube
This video has been viewed over 2000 times, so it is nothing new, but I don't remember it being mentioned here. I got the lead from a "list lurker" named Brad. Thank you, Brad. This video shows that a weight can be added to the 601XL quite nicely.
See http://www.youtube.com/watch?v=q_D4bt0guvM
--
Frank Derfler
601XL in the Florida 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: | | http://www.matronics.com/Navigator?Zenith601-List |
0123456789
[quote][b]
| | - The Matronics Zenith601-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:
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johnd(at)data-tech.com
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| Posted: Thu Apr 16, 2009 8:38 am Post subject: An example of 601XL mass balance on YouTube |
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Paul,
Keep in mind that Zenith has already submitted a design for a mass aileron balance to the UKs Light Aircraft Association so they can get the grounding in the UK lifted. The UK does certify to a lower gross weight but presumably the aileron balance should be applicable to our planes as well. The UK LAA guys are supposed to be fitting a test plane out with the new mod.
John Davis
Paul Mulwitz wrote: [quote]Hi Frank,
That balance weight looks very nice, but I'm afraid it raises as many questions as it answers.
It appears the rear channel has been nearly completely removed where the balance bar goes through it. What impact does this have on the strength of the wing?
Considering the color and welding shown it appears steel was used for most or all of the parts. Does this heavy material add a significant load to the rest of the wing design? Is all this steel really necessary to prevent flutter?
Does this prevent aileron flutter? Does this prevent wing flutter?
I truly hope we get a competent design from one of the engineers actually responsible for the Zodiac XL. Hopefully this would be Chris Heintz, but it might be one of the many other engineers who work on the Zenith drawings. I have no idea how to get Zenith/Zenair to come up with this design since they seem to be dragging their feet at every step.
Paul
XL grounded
At 08:30 AM 4/16/2009, you wrote:
| Quote: | I got the lead from a "list lurker" named Brad. Thank you, Brad. This video shows that a weight can be added to the 601XL quite nicely.
See http://www.youtube.com/watch?v=q_D4bt0guvM
--
href="http://www.matronics.com/Navigator?Zenith601-List">http://www.matronics.com/Navigator?Zenith601-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
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[b]
| | - The Matronics Zenith601-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:
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Gig Giacona
Joined: 10 Jan 2006
Posts: 1416
Location: El Dorado Arkansas USA
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| Posted: Thu Apr 16, 2009 8:42 am Post subject: Re: An example of 601XL mass balance on YouTube |
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I would be especially worried about how that weight (It looks awful heavy) would effect the hingeless ailerons.
| | - The Matronics Zenith601-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:
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W.R. "Gig" Giacona
601XL Under Construction
See my progress at www.peoamerica.net/N601WR |
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psm(at)att.net
Guest
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| Posted: Thu Apr 16, 2009 9:03 am Post subject: An example of 601XL mass balance on YouTube |
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Hi John,
Do you have a copy of this design's drawings? I don't.
Last I heard this design was considered a secret.
Paul
do not archive
At 09:33 AM 4/16/2009, you wrote:
| Quote: | Paul,
Keep in mind that Zenith has already submitted a design for a mass
aileron balance to the UKs Light Aircraft Association so they can
get the grounding in the UK lifted. The UK does certify to a lower
gross weight but presumably the aileron balance should be
applicable to our planes as well. The UK LAA guys are supposed to be
fitting a test plane out with the new mod.
John Davis
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| | - The Matronics Zenith601-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?Zenith601-List |
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johnd(at)data-tech.com
Guest
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| Posted: Thu Apr 16, 2009 9:10 am Post subject: An example of 601XL mass balance on YouTube |
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Hi Paul,
No, I dont have the design. The UK LAA folks must have it, not suer if
anyone outside of that group has seen it. My point was that they have a
design and there shouldnt be much involved in them releasing it. Its not
like they have to start from scratch...
John
Paul Mulwitz wrote:
| Quote: |
Hi John,
Do you have a copy of this design's drawings? I don't.
Last I heard this design was considered a secret.
Paul
do not archive
At 09:33 AM 4/16/2009, you wrote:
> Paul,
>
> Keep in mind that Zenith has already submitted a design for a mass
> aileron balance to the UKs Light Aircraft Association so they can get
> the grounding in the UK lifted. The UK does certify to a lower gross
> weight but presumably the aileron balance should be applicable to
> our planes as well. The UK LAA guys are supposed to be fitting a test
> plane out with the new mod.
>
> John Davis
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special4
Joined: 27 Sep 2006
Posts: 28
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| Posted: Thu Apr 16, 2009 3:58 pm Post subject: Re: An example of 601XL mass balance on YouTube |
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Paul
The aileron balance design is from the Airfox guys in Brasil, and will not work with the Horner wingtips. They use different wingtips. But most probably it could be modified.
Peter Sonders
| | - The Matronics Zenith601-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:
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