Zenith601-List Digest Archive

Wed 10/29/08


Total Messages Posted: 24



Today's Message Index:
----------------------
 
     1. 01:46 AM - [Probable Spam] Re: XL wing fold in flight (Martin Pohl)
     2. 06:49 AM - [Probable Spam] Re: XL wing fold in flight (Gig Giacona)
     3. 07:33 AM - Re: European ULM ( Ulralight ) 601xl (Bryan Martin)
     4. 07:41 AM - Re: [Probable Spam] Re: XL wing fold in flight (Bryan Martin)
     5. 07:45 AM - Re: [Probable Spam] Re: XL wing fold in flight (Bryan Martin)
     6. 08:07 AM - Re: Crash in Brazil (Iberplanes IGL)
     7. 08:41 AM - Re: Crash in Brazil (David Downey)
     8. 09:07 AM - Re: Crash in Brazil (Brian R. Wood)
     9. 09:08 AM - Re: [Probable Spam] Re: XL wing fold in flight (Iberplanes IGL)
    10. 09:26 AM - Re: European ULM ( Ulralight ) 601xl (LHusky@aol.com)
    11. 09:35 AM - Re: [Probable Spam] Re: XL wing fold in flight (LHusky@aol.com)
    12. 10:01 AM - Re: Crash in Brazil (Bryan Martin)
    13. 02:01 PM - Video of failed wing. (Gig Giacona)
    14. 02:11 PM - Re: Video of failed wing. (jaybannist@cs.com)
    15. 03:36 PM - Re: Video of failed wing. (TxDave)
    16. 03:45 PM - Re: Re: Video of failed wing. (Christopher Smith)
    17. 03:52 PM - Re: Re: Video of failed wing. (Jim Belcher)
    18. 04:03 PM - Re: Re: Video of failed wing. (Debo Cox)
    19. 04:06 PM - Re: Re: Video of failed wing. (Debo Cox)
    20. 04:10 PM - Re: Re: Video of failed wing. (Craig Payne)
    21. 04:22 PM - Re: 601XL Aileron Skin Rivet Pattern Question (GLJSOJ1)
    22. 05:29 PM - Re: [Probable Spam] Re: Re: XL wing fold in flight (Eric Tiethoff (HCCNet))
    23. 07:17 PM - Re: [Probable Spam] Re: Re: XL wing fold in flight (LarryMcFarland)
    24. 07:54 PM - Re: Re: Video of failed wing. (Afterfxllc@aol.com)
 
 
 


Message 1


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    Time: 01:46:47 AM PST US
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    From: "Martin Pohl" <mpohl@pohltec.ch>
    > It seems likely that changes to satisfy the lesser design loads included the center spar and caps, material and dimensions > nearest the wing attachment. I am currently comparing both ZAC and CZAW plans of the XL: There is no change in dimensions and material for center spar and caps or wing sheet thickness on the european CZAW version of the XL. The design of the wing structure seems to be equal. Martin CH601XL CZAW QBK[/quote] -------- Martin Pohl Zodiac XL QBK 8645 Jona, Switzerland www.pohltec.ch/ZodiacXL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210927#210927


    Message 2


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    Time: 06:49:05 AM PST US
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    From: "Gig Giacona" <wrgiacona@gmail.com>
    Just because there aren't any differences in the plans doesn't mean that CZAW didn't build the planes differently. Remember that we are talking about a company that has pretty much gone under due to financial problems. -------- W.R. &quot;Gig&quot; Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210957#210957


    Message 3


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    Time: 07:33:09 AM PST US
    From: Bryan Martin <bryanmmartin@comcast.net>
    Subject: Re: European ULM ( Ulralight ) 601xl
    The Euro planes have a 125 KG lower gross weight than the US planes, so the same 4 G loading will result in a 500 KG less load being carried by the wings for the Euro plane. On Oct 29, 2008, at 2:36 AM, K Dilks wrote: > > So to summerise I think maybe there are two planes here and two > differing potential aeres of concern. > If the Euro plane has such thin skins to get the empty weight down > I cant see why they say it can be +4 -2 g limit, the same as the > more beefy US planes. This area has to be explain by Zenair. -- Bryan Martin N61BM, CH 601 XL, RAM Subaru, Stratus redrive.


    Message 4


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    Time: 07:41:27 AM PST US
    From: Bryan Martin <bryanmmartin@comcast.net>
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    The CZAW airplanes imported to the US are probably nearly identical to the US kits, but the planes they built for the European market might not be. On Oct 29, 2008, at 1:35 AM, LHusky@aol.com wrote: > I had the chance to completely tear apart a CZAW aircraft. I am a > scratch builder and I know the parts really well. I looked over > every inch of the CZAW plane and it was identical. It even still > had stickers with the same part numbers ZAC parts come with. -- Bryan Martin N61BM, CH 601 XL, RAM Subaru, Stratus redrive. do not archive.


    Message 5


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    Time: 07:45:46 AM PST US
    From: Bryan Martin <bryanmmartin@comcast.net>
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    Simply lowering the max weight on the certificate also lowers the useful load because the empty weight remains the same. On Oct 28, 2008, at 9:58 PM, swater6 wrote: > > > > You don't need to modify an aircraft at all to lower the maximum > gross weight. You just lower the max weight on the certificate. > It's done all the time with LSA or with experimentals that the > builder wants to fly using the LSA rules. -- Bryan Martin N61BM, CH 601 XL, RAM Subaru, Stratus redrive. do not archive.


    Message 6


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    Time: 08:07:03 AM PST US
    From: "Iberplanes IGL" <iberplanes@gmail.com>
    Subject: Re: Crash in Brazil
    Yeah. this was the plane of my friend Lopes. Alberto Martin www.iberplanes.es Igualada - Barcelona - Spain ---------------------------------------------- Zodiac 601 XL Builder Serial: 6-7011 Tail Kit: Finished Wings: Not Started Fuselage: Ordered Engine: Jabiru 3300


    Message 7


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    Time: 08:41:39 AM PST US
    From: David Downey <planecrazydld@yahoo.com>
    Subject: Re: Crash in Brazil
    Please forgive the inferences that may be perceived from the following ques tion: How many of the XL crashes have occurred with two souls on board? The videos on the web from the Brasilian crash in May are particularly dist urbing because they show someone who was flying the airplane in a way that would introduce perfectly acceptable airframe loads when flown solo but cou ld easily overload if flown dual or over gross... It is very significant to me that there are so many flying without issues. The factory demonstrator, flown dual almost constantly, is a good example. I keep coming back to a- lack of understanding in the light sport communi ty of how loading is perceived and actually is applied to the occupant and the airframe. I believe that this is the issue with this plane, that it is a delightfully light handling airframe that is easy to overspeed and overlo ad. David L. Downey Harleysville-(SE) PA, USA --- On Wed, 10/29/08, Iberplanes IGL <iberplanes@gmail.com> wrote: From: Iberplanes IGL <iberplanes@gmail.com> Subject: Re: Zenith601-List: Crash in Brazil Yeah. this was the plane of my friend Lopes. Alberto Martin www.iberplanes.es Igualada - Barcelona - Spain ---------------------------------------------- Zodiac 601 XL Builder Serial: 6-7011 Tail Kit: Finished Wings: Not Started Fuselage: Ordered Engine: Jabiru 3300 =0A=0A=0A


    Message 8


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    Time: 09:07:47 AM PST US
    Subject: Re: Crash in Brazil
    From: "Brian R. Wood" <brianrobertwood@gmail.com>
    I really truly want to believe that, but the latest crash in the Netherlands happened in straight and level flight. That is dsturbing. Speculation is useless. I would like to know what kind of rivets were used in each situation. I have seen a lot of people who think hardware store pop rivets are equivalent to Avex blind rivets. I doubt that was the case in the Brazil crash because Lopes was building a kit, and I assume the kit comes with approved rivets. I am an A&P, and I will probably use driven rivets where ever possible, just because I like to rivet. But I would like to see concrete data about type of rivets, sheet thickness and any other pertinent variables. Brian Wood Proud owner of scratch-built plans. Looking forward to buying first metal. Em Wed, 29 Oct 2008 13:41:12 -0200, David Downey <planecrazydld@yahoo.com> escreveu: > applied to the occupant and the airframe. I believe that this is the > issue with this plane, that it is a delightfully light handling airframe > that is easy to overspeed and overload. > > David L. Downey Harleysville(SE) PA, USA >


    Message 9


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    Time: 09:08:26 AM PST US
    From: "Iberplanes IGL" <iberplanes@gmail.com>
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    Sorry to say but you are wrong. My friend Carlos have an CZAW XL parked next to my kit and is exactly like the one I am builing. Skins, dimmensions, materials. etc. and I can assure you that the workmanship quality is superb. What has been told about the weights is also incorrect. You can declare a lower weight in order to get the EU LSA certificate, but if you a cought........ Bye, Alberto Martin www.iberplanes.es Igualada - Barcelona - Spain ---------------------------------------------- Zodiac 601 XL Builder Serial: 6-7011 Tail Kit: Finished Wings: Not Started Fuselage: Ordered Engine: Jabiru 3300


    Message 10


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    Time: 09:26:03 AM PST US
    From: LHusky@aol.com
    Subject: Re: European ULM ( Ulralight ) 601xl
    I went out to my parts pile and remembered I had cut out some of the skin on the wing and the forward fuselage from the CZAW plane I parted out. It all measures .025. The front fuse is the air duct that I cut out for a pattern and the wing skin is from the hole where the fuel filler is. So, I can confirm that the CZAW plane that I had my hands on, had thicker skin than .016. Larry Husky Madras, Oregon In a message dated 10/28/2008 11:37:26 P.M. Pacific Daylight Time, kevin.dilks@liwest.at writes: --> Zenith601-List message posted by: "K Dilks" <kevin.dilks@liwest.at> Until earlier this year worked in France. At that time I did not know I was going to build a 601. A few things to point out. 1. ULM planes in Europe have a max EMPTY weight of 275KG and max TO of 475kg. The licence to fly these is less demanding . 2. What I have learnt before buying my kit ...arrives soon I hope is that the Euro plane has .16" wing skins not .25" like the US planes, lighter landing gear, the CH650 wing incedence, no anti oil canning stuff in the fuzz or wings. Now it would be nice for Nic Heniz to tell everyone about this and to confirm the CZAW planes were built this way as I have no concrete evidence.. 3. While in France I notice the zodiac skins to be very loose and suffering badly from oil canning, I also remember the rivet spacing on those thin skins was very wide , it just did not look right. So to summerise I think maybe there are two planes here and two differing potential aeres of concern. If the Euro plane has such thin skins to get the empty weight down I cant see why they say it can be +4 -2 g limit, the same as the more beefy US planes. This area has to be explain by Zenair. Second is that of flying aerobatics and flying well over gross in the US spec planes planes is a major cause for over stressing that design. I think that the Euro planes should be called different to distance that plane from the US version as suggest elswere on this list. I ordered the US kit because of these factors. Kit in Mid Atlantic......... Regards Kevin -------- Austria ...guess where I work! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=210918#210918 **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! (http://travel.aol.com/discount-travel?ncid=emlcntustrav00000001)


    Message 11


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    Time: 09:35:59 AM PST US
    From: LHusky@aol.com
    Subject: Re: [Probable Spam] Re: XL wing fold in flight
    I have to agree with you Alberto. I thought the quality of the plane and the construction was excellent. I have not seen a QBK in the US that was built as good. Larry Husky Madras, Oregon In a message dated 10/29/2008 9:09:26 A.M. Pacific Daylight Time, iberplanes@gmail.com writes: Sorry to say but you are wrong. My friend Carlos have an CZAW XL parked next to my kit and is exactly like the one I am builing. Skins, dimmensions, materials. etc. and I can assure you that the workmanship quality is superb. What has been told about the weights is also incorrect. You can declare a lower weight in order to get the EU LSA certificate, but if you a cought........ Bye, Alberto Martin _www.iberplanes.es_ (http://www.iberplanes.es/) Igualada - Barcelona - Spain ---------------------------------------------- Zodiac 601 XL Builder Serial: 6-7011 Tail Kit: Finished Wings: Not Started Fuselage: Ordered Engine: Jabiru 3300 (http://www.matronics.com/Navigator?Zenith601-List) (http://www.matronics.com/contribution) **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! (http://travel.aol.com/discount-travel?ncid=emlcntustrav00000001)


    Message 12


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    Time: 10:01:51 AM PST US
    From: Bryan Martin <bryanmmartin@comcast.net>
    Subject: Re: Crash in Brazil
    All of the crashes I am aware of were flying with two on board except two. One occurred on 5/2/2007 near Canadian, TX, NTSB Identification: DFW07LA102. A sport pilot took off with his seat belt unbuckled in weather below VFR minimums with heavy rain and lightning in the vicinity and possibly impaired by drugs. There's not much mystery about why that one crashed. The other occurred on 4/7/2008 near Polk City, FL, NTSB Identification: NYC08FA158. This was a Czech built plane on a cross country flight from Georgia to the Sun'N'Fun air show in Lakeland Florida. The nature of the flight might indicate that it was heavily loaded even with only one person on board. I know I stuff mine full of camping gear and baggage when I go on one of those trips. This one is still under investigation. On Oct 29, 2008, at 11:41 AM, David Downey wrote: > Please forgive the inferences that may be perceived from the > following question: > > How many of the XL crashes have occurred with two souls on board? > -- Bryan Martin N61BM, CH 601 XL, RAM Subaru, Stratus redrive. do not archive.


    Message 13


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    Time: 02:01:49 PM PST US
    Subject: Video of failed wing.
    From: "Gig Giacona" <wrgiacona@gmail.com>
    http://www.youtube.com/watch?v=XRCbkBfdBrQ Not a 601. -------- W.R. &quot;Gig&quot; Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=211035#211035


    Message 14


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    Time: 02:11:32 PM PST US
    Subject: Re: Video of failed wing.
    From: jaybannist@cs.com
    UNBELIEVABLE !!!? I agree, that guy has got to be the best pilot ever!? Puts new meaning to "fly the airplane!". What a Survivor! Jay in Dallas Do not archive -----Original Message----- From: Gig Giacona <wrgiacona@gmail.com> Sent: Wed, 29 Oct 2008 4:01 pm Subject: Zenith601-List: Video of failed wing. http://www.youtube.com/watch?v=XRCbkBfdBrQ Not a 601. -------- W.R. &quot;Gig&quot; Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=211035#211035 ________________________________________________________________________ Email message sent from CompuServe - visit us today at http://www.cs.com


    Message 15


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    Time: 03:36:11 PM PST US
    Subject: Re: Video of failed wing.
    From: "TxDave" <dclaytx2@hotmail.com>
    HOLY COW!!! If I hadn't seen it, I wouldn't have believed it. It just wasn't his time to go. Dave Clay Read this topic online here: http://forums.matronics.com/viewtopic.php?p=211049#211049


    Message 16


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    Time: 03:45:08 PM PST US
    From: Christopher Smith <arkansasaviator@gmail.com>
    Subject: Re: Video of failed wing.
    I hope you guys know this is a fake video made in Final Cut. Neat anyway.... On Oct 29, 2008, at 5:35 PM, TxDave wrote: > > HOLY COW!!! If I hadn't seen it, I wouldn't have believed it. It > just wasn't his time to go. > > Dave Clay > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=211049#211049 > >


    Message 17


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    Time: 03:52:36 PM PST US
    From: Jim Belcher <z601@anemicaardvark.com>
    Subject: Re: Video of failed wing.
    On Wednesday 29 October 2008 17:44, Christopher Smith wrote: That's what it looks like. The area where the wing is missing is no longer visible after the cut from the spin. After that point, only one side of the plane is shown. Still, it was a neat bit of editing. ============================================= Those who can, do. Those who can't, sue. ================================================ Jim B. Belcher BS, MS Physics, math, Computer Science A&P/IA Instrument Rated Pilot General Radio Telephone Certificate ================================================


    Message 18


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    Time: 04:03:01 PM PST US
    From: Debo Cox <sky_ranger161@yahoo.com>
    Subject: Re: Video of failed wing.
    That's the kind of pilot I want to be. Never say die. Debo Cox do not archive


    Message 19


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    Time: 04:06:41 PM PST US
    From: Debo Cox <sky_ranger161@yahoo.com>
    Subject: Re: Video of failed wing.
    I thought it looked a little processed. Doesn't matter to me if it's a hoax though. That's still the kind of pilot I want to be. Cheers Debo Cox do not archive


    Message 20


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    Time: 04:10:26 PM PST US
    From: "Craig Payne" <craig@craigandjean.com>
    Subject: Re: Video of failed wing.
    But there was that Israeli F-15 that flew and landed with one wing: http://www.defenceaviation.com/2007/04/pilot-lands-f-15-with-only-one-wing.h tml -- Craig -----Original Message----- From: owner-zenith601-list-server@matronics.com [mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Christopher Smith Sent: Wednesday, October 29, 2008 4:44 PM Subject: Re: Zenith601-List: Re: Video of failed wing. <arkansasaviator@gmail.com> I hope you guys know this is a fake video made in Final Cut. Neat anyway.... On Oct 29, 2008, at 5:35 PM, TxDave wrote: > > HOLY COW!!! If I hadn't seen it, I wouldn't have believed it. It > just wasn't his time to go. > > Dave Clay > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=211049#211049 > >


    Message 21


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    Time: 04:22:21 PM PST US
    Subject: Re: 601XL Aileron Skin Rivet Pattern Question
    From: "GLJSOJ1" <gljno10@hotmail.com>
    Hi Dave I checked my drawing and there is no mention of the front of the outboard rib. All of my construction photos don't show it, but I believe I hit the rib flange at 10MM and spaced the others evenly as there was no mention of it in the drawing or manual. My wings are at the field and will be a awhile before I get to them. Mine is also an older version -------- 601XL N676L reserved ALMOST DONE CHESAPEAKE VA Read this topic online here: http://forums.matronics.com/viewtopic.php?p=211066#211066


    Message 22


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    Time: 05:29:39 PM PST US
    From: "Eric Tiethoff (HCCNet)" <j.e.tiethoff@hccnet.nl>
    Subject: Re: XL wing fold in flight
    Dear Larry, you must be very clever to know all these things ! Kindest regards, Eric Tiethoff, Holland. -------------------------------------------------- From: "LarryMcFarland" <larry@macsmachine.com> Sent: Wednesday, October 29, 2008 1:52 AM Subject: Re: [Probable Spam] RE: Zenith601-List: Re: XL wing fold in flight > <larry@macsmachine.com> > > Rick, > It seems likely that changes to satisfy the lesser design loads included > the center spar and caps, material and dimensions > nearest the wing attachment. That's a 25-percent reduction in carrying > capacity. Likely, the differences were cost factors, > otherwise the changes would not have been made. If this is a pessimistic > view so be it, but there shouldn't be a difference > in the way the 601XL is built in the US or overseas by contractor or one > person. > (The maximum take-off mass of this aircraft in the U.S. is 595 kg. To meet > the criteria for European "Micro Light Airplane" (MLA) in the Czech > Republic a number of modifications where made to the model to the meet > the requirement of a maximum take-off mass of 450 kg.) > > Larry McFarland 601HDS at www.macsmachine.com > > > Rick Lindstrom wrote: >> <tigerrick@mindspring.com> >> >> If I didn't misread the translated accident report, it states that the >> accident aircraft "is a Czech Republic model." >> >> I'm wondering how the construction differed to allow adequate useful load >> with the 450 kg weight limitation, especially in the area of the rear >> spar fuselage attachment. >> >> Rick >> >> -----Original Message----- >> >>> From: Craig Payne <craig@craigandjean.com> >>> Sent: Oct 28, 2008 12:17 PM >>> To: zenith601-list@matronics.com >>> Subject: RE: Zenith601-List: Re: XL wing fold in flight >>> >>> <craig@craigandjean.com> >>> >>> Key point is this: >>> >>> "A comprehensive examination design drawings of the U.S. draft has shown >>> that the outcome of the strength calculations by the designer was >>> probably too optimistic." >>> >>> How do we reconcile this with the actual load testing (which was said to >>> have been conducted by an independent outside engineer)? >>> >>> http://www.zenithair.com/zodiac/6-photo-testing.html >>> >>> -- Craig >>> >>> -----Original Message----- >>> From: owner-zenith601-list-server@matronics.com >>> [mailto:owner-zenith601-list-server@matronics.com] On Behalf Of >>> willemdelange >>> Sent: Tuesday, October 28, 2008 10:17 AM >>> To: zenith601-list@matronics.com >>> Subject: Zenith601-List: Re: XL wing fold in flight >>> >>> <willemdelange@gmail.com> >>> >>> Nederlands Engels translate FACTUAL INFORMATION Proceedings of the >>> flight The PH-4B6, a micro-light plane aero (MLA) of the brand and type >>> Zenair Zodiac CH601 XL, take off from the airport Midden Meer >>> (North-Holland).September 14, 2008 around 12:30 On board were two >>> people: the owner / pilot and a passenger. After the take-off from >>> run-way -05 the aircraft flew in a northeasterly direction north-east. >>> At the height of the village Kreileroord a left turn of around 270 >>> degrees was made which made the plane flew south to Medemblik. Above >>> Medemblik a 360 turn was made. The height during this stage of the >>> flight ranged between 1100 and 1300 ft. From the Medemblik the PH-4B6 >>> flew to Hoorn. The plane then flew on to the Lake of Hoorn. The plane >>> flew at an altitude of about 1000 ft. There were witnesses on the ground >>> seeing that the right wing folded up and that the plane crashed in the >>> water of the Marker Lake around 12:47. The two occupants did not survive >>> the crash. RESEARCH A researcher of the research board has been on the >>> spot and after the saving of the wreck did an initial investigation. At >>> a later time an extensive technical research was conducted with the help >>> of a ground engineer. Later a part of the main spar of the right wing >>> and the rear spar has been removed. Also the GPS unit and the >>> speedometer where removed for further examination. The flight data >>> mentioned in this report are drawn from the GPS unit. Through the >>> Aviation Police witness statements were obtained. The PH-4B6 is a Zenair >>> Zodiac CH601 XL. In 2000 this aircraft has been developed in the United >>> States (U.S.) from earlier versions of the Zodiac CH601. The CH601 XL >>> can be delivered as a "kit" in which the owner assembles the >>> prefabricated parts or as "ready to fly" where the aircraft has been >>> fully assembled and delivered by the manufacturer. In the U.S., this >>> type of aircraft is accepted under the category "Light Sport Aircraft". >>> One of the consequences is that the aircraft is not certified according >>> to international airworthiness requirements. The manufacturer declares >>> that the design meets the requirements for this category of aircraft and >>> that the device is manufactured in accordance with an approved method. >>> The maximum take-off mass of this aircraft in the U.S. is 595 kg. The >>> same type of plane is built under license from the beginning of 2005 >>> until the end of 2006 in the Czech Republic, in particular for the >>> European market. To meet the criteria for European "Micro Light >>> Airplane" (MLA) in the Czech Republic a number of modifications where >>> made to the model to the meet the requirement of a maximum take-off mass >>> of 450 kg. The accidents PH-4B6 is a Czech Republic model. The model >>> fabricated in the Czech Republic is tested by the "Deutsche Aeroclub" >>> which resulted in a so-called "Gertekennblatt" was issued which >>> stated that the German plane meets the airworthiness requirements for >>> MLA's . In the Netherlands, among others this "Gertekennblatt" is used >>> by the Traffic and Water Management Inspectorate (IVW) to issue a >>> "special airworthiness certificate" . The same type of aircraft can also >>> be registered as a "home built" aircraft in the Dutch aircraft register. >>> In that case, the aircraft meets the requirements of amateur aircraft >>> construction standards. The statutory requirement of a maximum take-off >>> mass of 450 kg it expires. The preliminary investigation shows the >>> following: In the Dutch aircraft registry offers 12 aircraft of the >>> type which registered CH601 XL 8 as MLA and 4 are home built. In >>> addition, we have 15 registered aircraft of the type CH601 HD, HDS and >>> UL. These are other versions of the type CH601. The PH-4B6 aircraft >>> had a valid "special certificate of airworthiness." A calculation >>> shows that the mass of the airplane at the start probably at or slightly >>> above the maximum allowable off mass of 450 kg. After reading from >>> the GPS unit showed that the aircraft has made no extreme movements and >>> just before the time of the accident a straight flight at about 1000 ft >>> exported. The right wing moved up during the flight and folded back >>> with the top of the wing folded on the top of the fuselage behind the >>> canopy. The right wing is not broken. The upper reinforcement of >>> the main spar of the right wing is kinked and twisted, just before the >>> wing-fuselage attachment. The bottom reinforcement of the main beam >>> of the right wing is twisted, just before the wing-fuselage >>> confirmation. The acting load factor of the wings was far below the >>> permissible load factor. Data from the Royal Netherlands >>> Meteorological Institute show that the wind at 1000 ft from the >>> direction of 070 blew with a force of 11 knots. The visibility was >>> more than 10 kilometers and there was no turbulence. >>> >From 2006 until today there have been at least seven accidents >>> >worldwide with Zenair Zodiac CH601 where one or both wings have >>> >collapsed due to overloading. These accidents have occurred in the >>> >United States, Britain and Spain. The investigation into this accident >>> >has not (yet) pointed to a single cause for the collapse of the wings. >>> A comprehensive examination design drawings of the U.S. draft has >>> shown that the outcome of the strength calculations by the designer was >>> probably too optimistic. PRELIMINARY CONCLUSION The study by the >>> Research Council for Security to the cause of this accident is not yet >>> completed. Nevertheless, the Council decided, in view of the seven >>> similar incidents elsewhere in the world and pending the final results >>> of his research, in this interim report all directly and indirectly >>> involved must seriously warn against the obvious risks in the use of >>> this type plane. >>> >>> -------- >>> Willem de Lange >>> CH601XL owner >>> >>> >>> >>> >>> Read this topic online here: >>> >>> http://forums.matronics.com/viewtopic.php?p=210796#210796 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >> >> >> >> >> > > >


    Message 23


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    Time: 07:17:31 PM PST US
    From: LarryMcFarland <larry@macsmachine.com>
    Subject: Re: XL wing fold in flight
    Youre exactly right Eric, placing any assumption before the investigation is done offers no one a clear view. My apologies all for commenting to something thats not yet been officially determined. I'll try to refrain from such folly in the future. Best regards, Larry McFarland 601HDS at www.macsmachine.com Do not archive Eric Tiethoff (HCCNet) wrote: > <j.e.tiethoff@hccnet.nl> > > Dear Larry, you must be very clever to know all these things ! Kindest > regards, Eric Tiethoff, Holland. > >


    Message 24


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    Time: 07:54:06 PM PST US
    From: Afterfxllc@aol.com
    Subject: Re: Video of failed wing.
    _http://www.jamesandersson.com/video01.html_ (http://www.jamesandersson.com/video01.html) In a message dated 10/29/2008 7:10:47 P.M. Eastern Daylight Time, craig@craigandjean.com writes: --> Zenith601-List message posted by: "Craig Payne" <craig@craigandjean.com> But there was that Israeli F-15 that flew and landed with one wing: http://www.defenceaviation.com/2007/04/pilot-lands-f-15-with-only-one-wing.h tml -- Craig -----Original Message----- From: owner-zenith601-list-server@matronics.com [mailto:owner-zenith601-list-server@matronics.com] On Behalf Of Christopher Smith Sent: Wednesday, October 29, 2008 4:44 PM Subject: Re: Zenith601-List: Re: Video of failed wing. <arkansasaviator@gmail.com> I hope you guys know this is a fake video made in Final Cut. Neat anyway.... On Oct 29, 2008, at 5:35 PM, TxDave wrote: > > HOLY COW!!! If I hadn't seen it, I wouldn't have believed it. It > just wasn't his time to go. > > Dave Clay > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=211049#211049 > > **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! (http://travel.aol.com/discount-travel?ncid=emlcntustrav00000001)




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