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  Topic: Q&A FAA Special Review Team Report - Zodiac 601XL/650 (W
dougsire

Replies: 1
Views: 1706

PostForum: Zenith-List   Posted: Thu Feb 25, 2010 3:33 pm   Subject: Re: Q&A FAA Special Review Team Report - Zodiac 601XL/6
Wull gee Rick. The FAA report indicated that they "identified several significant issues with the manufacturer's structural loads analysis." And (among other things) that "the loads ...
  Topic: Zenith 601xl mods
dougsire

Replies: 9
Views: 5564

PostForum: Zenith-List   Posted: Fri Nov 20, 2009 7:50 am   Subject: Re: Zenith 601xl mods
Here is a note posted by Mathieu today on his Q&A blog, "We will be issuing new drawings VERY shortly with significant changes. There will be 4 pages"
  Topic: Zenith 601/650 Upgrades, Grove Gear Mod
dougsire

Replies: 9
Views: 18315

PostForum: Zenith601-List   Posted: Thu Nov 19, 2009 9:36 am   Subject: Re: Zenith 601/650 Upgrades, Grove Gear Mod
If you have never seen it before, there is an interesting video on the Grove site of a drop test simulating a hard (probably extremely hard) landing, http://www.groveaircraft.com/landing_gear.html. W ...
  Topic: In a galaxy far, far away
dougsire

Replies: 10
Views: 7124

PostForum: Zenith601-List   Posted: Mon Nov 16, 2009 9:56 am   Subject: Re: In a galaxy far, far away
Well Roger, at least you have finally proved what I have suspected all along. You're not really in touch with reality.

And apart from your obvious arrogance, what proof do you have that you are s ...
  Topic: update on the CH601XL--- REQUIRED MODs
dougsire

Replies: 12
Views: 8036

PostForum: Zenith601-List   Posted: Tue Nov 10, 2009 2:50 pm   Subject: Re: update on the CH601XL--- REQUIRED MODs
Rick,

I would be interested in considering the Grove gear. Then I would just need to figure out what to do with my current, standard, gear. I think it is too big for the slot at the recycling c ...
  Topic: Spar Cap Bolts
dougsire

Replies: 0
Views: 1860

PostForum: Zenith601-List   Posted: Tue Nov 10, 2009 9:12 am   Subject: Spar Cap Bolts
The upgrade plans call for using AN3 or AN4 bolts to attach the spar extrusion, 6-ZU-1-1, to the existing upper spar cap (after drilling out existing rivets. Are there any issues or concerns with ha ...
  Topic: 601XL down in Arkansas
dougsire

Replies: 13
Views: 11473

PostForum: Zenith601-List   Posted: Sat Nov 07, 2009 11:39 am   Subject: 601XL down in Arkansas
A 601XL crashed in north central Arkansas yesterday, http://diamondpilots.blogspot.com/2009/11/plane-crash-in-fulton-county-arkansas.html. Can anyone get to the crash site to get photos? It could ...
  Topic: Additional NTSB Documents
dougsire

Replies: 9
Views: 10359

PostForum: Zenith601-List   Posted: Sat Oct 31, 2009 8:00 am   Subject: Re: Additional NTSB Documents
I think the real question to be answered here is not where the compression buckling occurred, but rather why did it occur. What physical force caused this damage? Personally I think this area is i ...
  Topic: Additional NTSB Documents
dougsire

Replies: 9
Views: 10359

PostForum: Zenith601-List   Posted: Thu Oct 29, 2009 8:17 am   Subject: Additional NTSB Documents
John Clark, Chief Scientist, Office of Aviation Safety at the NTSB has posted three additional documents to the public docket of the Polk City, FL accident. They include photos of “compression buc ...
  Topic: LAA Testing
dougsire

Replies: 9
Views: 5284

PostForum: Zenith-List   Posted: Wed Jul 22, 2009 6:38 am   Subject: Re: LAA Testing
Roger,

Do you have a copy of the NTSB Materials Laboratory Report 07-095 dated 9/19/07 regarding the Yuba City crash? One can't hope to understand what might have happened without really digestin ...
  Topic: Most recent letter from Chris
dougsire

Replies: 5
Views: 3138

PostForum: Zenith-List   Posted: Fri Jul 10, 2009 11:29 am   Subject: Re: Most recent letter from Chris
Roger,

There is no "ZBAG reply" as you state, "Those in quotation marks are
ZBAG's reply to Jim's statements". There is no global ZBAG headquarters where opinions are promul ...
  Topic: Airventure Forum Update
dougsire

Replies: 10
Views: 5735

PostForum: Zenith-List   Posted: Thu Jul 02, 2009 3:46 pm   Subject: Re: Airventure Forum Update
Mark,

The official EAA site, http://www.eaaapps.org/forumsearchresults.aspx?presenter=766, has the first two forums reversed from what you show. Are you sure your information is correct????
  Topic: Oshkosh dinner
dougsire

Replies: 12
Views: 7231

PostForum: Zenith-List   Posted: Wed Jul 01, 2009 7:19 am   Subject: Re: Oshkosh dinner
I understand that due to the recent rancor on the lists that all weapons will need to be checked at the door.
  Topic: Report on Zenith Zodiac CH601 XL Accident in Australia
dougsire

Replies: 8
Views: 7331

PostForum: Zenith601-List   Posted: Fri Jun 26, 2009 8:34 am   Subject: Re: Report on Zenith Zodiac CH601 XL Accident in Australia
Since they chose to include the comment "Prior to taking off, the pilot declared that he was intending to perform some ‘mild aerial manoeuvres’ " I'm wondering if they are hinting at the ...
  Topic: Sparky and other assorted experts.
dougsire

Replies: 1
Views: 1732

PostForum: Zenith-List   Posted: Tue Jun 02, 2009 6:25 am   Subject: Re: Sparky and other assorted experts.
I agree. We should ignore your posts.
  Topic: Attention all Rednecks
dougsire

Replies: 19
Views: 7576

PostForum: Zenith-List   Posted: Fri Apr 17, 2009 7:59 pm   Subject: Attention all Rednecks
Yep, you know who you are (Moody, Giacona et al.). You're the ones who are convinced that a group of fellow builders has ruined your life just because we have legitimate questions about the viabilit ...
  Topic: NTSB recommends grounding of 601XLs in US
dougsire

Replies: 115
Views: 69010

PostForum: Zenith-List   Posted: Tue Apr 14, 2009 12:18 pm   Subject: NTSB recommends grounding of 601XLs in US
While surfing the NTSB site today I found this letter to the FAA.

http://www.ntsb.gov/Recs/letters/2009/A09_30_37.pdf.

Among other recommendations to the FAA...
Therefore, the National Transpor ...
  Topic: Riveting spar caps
dougsire

Replies: 6
Views: 5612

PostForum: Zenith601-List   Posted: Thu Feb 12, 2009 8:15 am   Subject: Riveting spar caps
For those scratch builders out there, what did you use to drive the 5/32" and 3/16" AN470AD rivets in the main spar caps? I'm considering using 5/32" solid rivets in some places and a ...
  Topic: How Many Other 650 Builders Are There Now??
dougsire

Replies: 17
Views: 24375

PostForum: Zenith650-List   Posted: Thu Feb 05, 2009 4:42 pm   Subject: Re: How Many Other 650 Builders Are There Now??
I'm planning to convert my full 601XL kit to a 650. I'm working on HS now so plan to incorporate all of the changes.

What are they charging for the canopy conversion kit (for those with full 601 ...
  Topic: Tensile Strength of AN470 solid rivets
dougsire

Replies: 6
Views: 7962

PostForum: Zenith601-List   Posted: Mon Feb 02, 2009 2:36 pm   Subject: Re: Tensile Strength of AN470 solid rivets
I forgot to mention that in my searches all I have found is a very high number (at least relative to others that I'm comparing against), such as 38,000 lbs. This must be an ultimate number whereas e ...
 
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