Today's Message Index:
----------------------
1. 07:21 AM - Re: Report from OSH on 601xl update issues. (Stephen R. Look)
2. 07:42 AM - Re: Report from OSH on 601xl update issues. (Jim Belcher)
3. 09:51 AM - Re: Report from OSH on 601xl update issues. (Craig Payne)
4. 10:34 AM - Re: Report from OSH on 601xl update issues. (Craig Payne)
5. 10:43 AM - Re: Report from OSH on 601xl update issues. (Craig Payne)
6. 03:43 PM - Re: Report from OSH on 601xl update issues. (LHusky@aol.com)
7. 08:25 PM - Re: Trim bonding (chuck960)
Message 1
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| Subject: | Re: Report from OSH on 601xl update issues. |
Really? A design difference for 120 pounds causes the failures?
Steve
At 05:39 PM 7/27/2010, you wrote:
>... His comment was that the wing was designed for only 1200 pounds
>(for the European ultralight market) gross weight but the operating
>weight was 1320. For him (and maybe for me now) this explained not
>only the design issue behind the failures but is also consistent
>with the location of the actual failures on the wing spars. He was
>unsure if the wing failure caused flutter or the flutter caused the
>wing failures, but he feels the update properly addresses this
>issue since it strengthens the wings and balances the ailerons.
Steve Look
Monticello, IL
www.ilrt66.com
"Dogs have owners, Cats have staff"
Message 2
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| Subject: | Re: Report from OSH on 601xl update issues. |
That was my reaction, Steve. Evidently, there must have been very little
reserve for error. :)
On Wednesday 28 July 2010 09:18:58 you wrote:
>
> Really? A design difference for 120 pounds causes the failures?
>
> Steve
>
> At 05:39 PM 7/27/2010, you wrote:
> >... His comment was that the wing was designed for only 1200 pounds
> >(for the European ultralight market) gross weight but the operating
> >weight was 1320. For him (and maybe for me now) this explained not
> >only the design issue behind the failures but is also consistent
> >with the location of the actual failures on the wing spars. He was
> >unsure if the wing failure caused flutter or the flutter caused the
> >wing failures, but he feels the update properly addresses this
> >issue since it strengthens the wings and balances the ailerons.
>
> Steve Look
> Monticello, IL
> www.ilrt66.com
> "Dogs have owners, Cats have staff"
>
>
--
=======================================
Jim B. Belcher
BS,MS Physics
A&P/IA
General Radio Telephone Certificate
Instrument Rated Pilot
Retired Aerospace Technical Manager
Semi-proficient Househusband
=======================================
Message 3
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| Subject: | Report from OSH on 601xl update issues. |
No, it was flutter! Somebody proved it, somewhere, on the Internet. That is
why the FAA approved fix has balance arms for the ailerons. ;-)
-- Craig
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Stephen R.
Look
Sent: Wednesday, July 28, 2010 7:19 AM
Subject: Re: Zenith601-List: Report from OSH on 601xl update issues.
--> <slook@mchsi.com>
Really? A design difference for 120 pounds causes the failures?
Steve
At 05:39 PM 7/27/2010, you wrote:
>... His comment was that the wing was designed for only 1200 pounds
>(for the European ultralight market) gross weight but the operating
>weight was 1320. For him (and maybe for me now) this explained not
>only the design issue behind the failures but is also consistent with
>the location of the actual failures on the wing spars. He was unsure
>if the wing failure caused flutter or the flutter caused the wing
>failures, but he feels the update properly addresses this issue since
>it strengthens the wings and balances the ailerons.
Steve Look
Monticello, IL
www.ilrt66.com
"Dogs have owners, Cats have staff"
Message 4
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| Subject: | Report from OSH on 601xl update issues. |
I'm trying to recall how many of the unexplained crashes involved solo
flights. Florida, Utah, others? Was the Yuba City, CA crash the only one
with two people aboard?
-- Craig
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Stephen R.
Look
Sent: Wednesday, July 28, 2010 7:19 AM
Subject: Re: Zenith601-List: Report from OSH on 601xl update issues.
--> <slook@mchsi.com>
Really? A design difference for 120 pounds causes the failures?
Steve
At 05:39 PM 7/27/2010, you wrote:
>... His comment was that the wing was designed for only 1200 pounds
>(for the European ultralight market) gross weight but the operating
>weight was 1320. For him (and maybe for me now) this explained not
>only the design issue behind the failures but is also consistent with
>the location of the actual failures on the wing spars. He was unsure
>if the wing failure caused flutter or the flutter caused the wing
>failures, but he feels the update properly addresses this issue since
>it strengthens the wings and balances the ailerons.
Steve Look
Monticello, IL
www.ilrt66.com
"Dogs have owners, Cats have staff"
Message 5
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| Subject: | Report from OSH on 601xl update issues. |
To answer my own question: no, the Oakdale, CA crash (LAX06LA105) also had
two aboard.
-- Craig
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Craig Payne
Sent: Wednesday, July 28, 2010 10:35 AM
Subject: RE: Zenith601-List: Report from OSH on 601xl update issues.
--> <craig@craigandjean.com>
I'm trying to recall how many of the unexplained crashes involved solo
flights. Florida, Utah, others? Was the Yuba City, CA crash the only one
with two people aboard?
-- Craig
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Stephen R.
Look
Sent: Wednesday, July 28, 2010 7:19 AM
Subject: Re: Zenith601-List: Report from OSH on 601xl update issues.
--> <slook@mchsi.com>
Really? A design difference for 120 pounds causes the failures?
Steve
At 05:39 PM 7/27/2010, you wrote:
>... His comment was that the wing was designed for only 1200 pounds
>(for the European ultralight market) gross weight but the operating
>weight was 1320. For him (and maybe for me now) this explained not
>only the design issue behind the failures but is also consistent with
>the location of the actual failures on the wing spars. He was unsure
>if the wing failure caused flutter or the flutter caused the wing
>failures, but he feels the update properly addresses this issue since
>it strengthens the wings and balances the ailerons.
Steve Look
Monticello, IL
www.ilrt66.com
"Dogs have owners, Cats have staff"
Message 6
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| Subject: | Re: Report from OSH on 601xl update issues. |
The Arkansas accident was a solo flight if I remember right. Also, I
think the Florida accident was a solo one.
In a message dated 7/28/2010 9:52:30 A.M. Pacific Daylight Time,
craig@craigandjean.com writes:
--> Zenith601-List message posted by: "Craig Payne"
<craig@craigandjean.com>
No, it was flutter! Somebody proved it, somewhere, on the Internet. That is
why the FAA approved fix has balance arms for the ailerons. ;-)
-- Craig
-----Original Message-----
From: owner-zenith601-list-server@matronics.com
[mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Stephen R.
Look
Sent: Wednesday, July 28, 2010 7:19 AM
Subject: Re: Zenith601-List: Report from OSH on 601xl update issues.
--> Zenith601-List message posted by: "Stephen R. Look"
--> <slook@mchsi.com>
Really? A design difference for 120 pounds causes the failures?
Steve
At 05:39 PM 7/27/2010, you wrote:
>... His comment was that the wing was designed for only 1200 pounds
>(for the European ultralight market) gross weight but the operating
>weight was 1320. For him (and maybe for me now) this explained not
>only the design issue behind the failures but is also consistent with
>the location of the actual failures on the wing spars. He was unsure
>if the wing failure caused flutter or the flutter caused the wing
>failures, but he feels the update properly addresses this issue since
>it strengthens the wings and balances the ailerons.
Steve Look
Monticello, IL
www.ilrt66.com
"Dogs have owners, Cats have staff"
Message 7
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| Subject: | Re: Trim bonding |
You guys continue to be a great source of information. Thanks!
I just returned from Airventure. The wet conditions forced many campers to parking
lots at the shopping center. Also Aircraft were stopped from flying in as
there was no dry place to put them. We got there just in time to get one of the
last camping spots on Sunday. Conditions were improved somewhat when we left
today.
I saw only two 601's there and took a long look at both of them. naturally there
was a zillion RV's. Beautiful aircraft they are.
I got some hands on training at the gas welding workshop and I feel that with a
little practice I can make aircraft non structural parts.
Cheers, Chuck CH 650.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=306631#306631
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