Zenith-List Digest Archive

Fri 12/21/07


Total Messages Posted: 25



Today's Message Index:
----------------------
 
     1. 02:31 AM - Re: Another 701 is ready to fly (Iberplanes IGL)
     2. 03:20 AM - Re: Another 701 is ready to fly (kmccune)
     3. 03:24 AM - Re: Re: Aluminum source in Minneapolis/ST Paul (David Downey)
     4. 03:29 AM - Re: Another 701 is ready to fly (rroberts)
     5. 03:32 AM - Re: Metric W & B (David Downey)
     6. 04:46 AM - 'Tis the Season (Zed Smith)
     7. 06:30 AM - Re: 'Tis the Season (cookwithgas)
     8. 07:19 AM - Re: 601 and wing failiers (Gig Giacona)
     9. 07:22 AM - Re: Lister accesability ? (Gig Giacona)
    10. 07:44 AM - Re: A Practical Electric Airplane (Bob Unternaehrer)
    11. 07:44 AM - Re: Re: 601 and wing failiers (Bob Unternaehrer)
    12. 07:54 AM - Re: Re: 601 and wing failiers (Iberplanes IGL)
    13. 08:06 AM - Re: Seat elevating divices (Bob Unternaehrer)
    14. 09:37 AM - Re: 601xl Project For Sale (Kemter)
    15. 10:20 AM - Re: Re: 601 and wing failiers (John Short)
    16. 11:26 AM - Re: Metric W & B (craig@craigandjean.com)
    17. 11:41 AM - Re: 601 and wing failiers (PatrickW)
    18. 12:24 PM - Re: A Practical Electric Airplane (PatrickW)
    19. 01:00 PM - Re: Aluminum source in Minneapolis/ST Paul (kmccune)
    20. 01:11 PM - Re: 601 and wing failiers (rsteele@rjsit.com)
    21. 01:33 PM - Re: Re: Lister accesability ? (Aaron Gustafson)
    22. 01:42 PM - Re: A Practical Electric Airplane (Gig Giacona)
    23. 03:07 PM - A glitch on the (email) list (Was "A Practical Electric Airplane ") (Carlos Sa)
    24. 03:09 PM - Re: Metric W & B (Darryl Legg)
    25. 04:57 PM - Re: Re: 601 and wing failiers (Juan Vega)
 
 
 


Message 1


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    Time: 02:31:32 AM PST US
    From: "Iberplanes IGL" <iberplanes@gmail.com>
    Subject: Re: Another 701 is ready to fly
    Congratulations !! ----- Original Message ----- From: Les Goldner To: zenith-list@matronics.com Sent: Friday, December 21, 2007 8:02 AM Subject: Zenith-List: Another 701 is ready to fly My 701 was given an airworthiness certificate yesterday. It's ready to fly, but still needs some paint and a few add-ons. It took me about a year and a half working 4 or 5-hours per day, or about 1500 hours to build it. I guess you could build one in the advertised 500 hours if you are really really fast and already built a few other 701s to get your speed up, but I couldn't do it. Each additional item I added (like a removable panel, cargo and under-tail access doors, much lighter mailbox type door locks, and an internal BRS chute) took me an extra week or two of work. The chute put an extra 40# behind the baggage compartment but the CG and empty weight still looks OK. Why a chute? A trip in a 2-seat ultralight from San Francisco to the Grand Canyon and back early this year convinced me of the need to be able to make a "soft" emergency landing in places where it would not be possible without a chute. I would not have taken this spectacular flight without a chute. I placed a picture of N67MG below, but don't know if Matronics will allow it to be posted. Regards, Les Goldner 701 N67MG Petaluma, Ca


    Message 2


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    Time: 03:20:07 AM PST US
    Subject: Re: Another 701 is ready to fly
    From: "kmccune" <kmccune@somtel.net>
    Congratulations! Re:(like a removable panel, cargo and under-tail access doors, much lighter mailbox type door locks, and an internal BRS chute) I'd like to see pics of the plane and the above, if you can get the pics to work. -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153477#153477


    Message 3


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    Time: 03:24:49 AM PST US
    From: David Downey <planecrazydld@yahoo.com>
    Subject: Re: Aluminum source in Minneapolis/ST Paul
    My local Fastenal outlet did not stock it but were willing to bring it in. I know its high, I was trying to buy locally, I'm willing to pay a little more and not have to pay for shipping, but WOW! I'll contact the places listed. Kevin -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153446#153446 Dave Downey Harleysville (SE) PA 100 HP Corvair --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.


    Message 4


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    Time: 03:29:47 AM PST US
    Subject: Re: Another 701 is ready to fly
    From: "rroberts" <n701rr@yahoo.com>
    Congrats Les ! !! Soon the sky will be filled with 701s! ! Don't forget to get a couple hours of flight time with someone in their 701, -------- Low &amp; Slow Rick www.n701rr.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153479#153479


    Message 5


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    Time: 03:32:54 AM PST US
    From: David Downey <planecrazydld@yahoo.com>
    Subject: Re: Metric W & B
    ..pretty straight forward to change the equations to SI units. Are these sheets locked or editable? If they are not locked, I could do the changes if you like. Hi Group, I have come across a couple of very well laid out weight & balance Excel sheets, but only with weights in pounds and fuel in gallons. Has anyone made/know of one in metric kgs/litres for us metricated people down under. Thanks, Darryl. Dave Downey Harleysville (SE) PA 100 HP Corvair --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.


    Message 6


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    Time: 04:46:53 AM PST US
    From: Zed Smith <zsmith3rd@earthlink.net>
    Subject: 'Tis the Season
    List, Regardless of your particular leanings, it is the season to wish all the best to all. That said,,,, Merry Christmas, Happy New Year, smooth sailing, tailwinds, full fuel, smiles, fewer misspelledd werds, sharp drill bits, and an endless supply of ScotchBrite pads to all. You're a really good group and a constant source of all those handy building tidbits. Best of the season to all, Zed/701/R912/90+%/5th year/etc do not archive


    Message 7


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    Time: 06:30:16 AM PST US
    Subject: Re: 'Tis the Season
    From: "cookwithgas" <cookwithgas@HOTMAIL.COM>
    Zed I always look forward to your posts. You don't say much but when you do it is well thought out and meaningful. Thanks for your contributions and best wishes to you also. Merry Christmas and safe travels everyone. Scott Laughlin Omaha, Nebraska www.cooknwithgas.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153499#153499 Attachments: http://forums.matronics.com//files/laughlins_466.jpg


    Message 8


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    Time: 07:19:06 AM PST US
    Subject: Re: 601 and wing failiers
    From: "Gig Giacona" <wr.giacona@suddenlink.net>
    Probably a bad idea. Other than the obvious weight penalty you would have to do a complete engineering test to see how the weight out in the wings would effect g-loading. John75142 wrote: > Just a thought and it probably ain't a good one but what about filling > certain cavities with a low expansion foam. > > > --- -------- 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=153505#153505


    Message 9


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    Time: 07:22:34 AM PST US
    Subject: Re: Lister accesability ?
    From: "Gig Giacona" <wr.giacona@suddenlink.net>
    In addition to how your e-mail program works and the other posters work there is also the issue that a number of us also post and read via forums.matronic.com. While the tradition of a the e-mail list is nice and all, the web based system works very well and I have found it much easier to deal with. agustafson(at)chartermi.n wrote: > I'm wondering why some people's posts have their email address included in the message and some do not. I would sometimes reply directly to a poster but do not want to reply to the whole list. If there is no address I just forget about it. > > Aaron Gustafson > -------- 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=153507#153507


    Message 10


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    Time: 07:44:17 AM PST US
    From: "Bob Unternaehrer" <shilocom@mcmsys.com>
    Subject: Re: A Practical Electric Airplane
    Sonex and aerocarb are the same co. aren't they. bob U. ----- Original Message ----- From: Frank Derfler To: zenith-list@matronics.com Sent: Thursday, December 20, 2007 7:03 AM Subject: Zenith-List: A Practical Electric Airplane I started a thread here a while back about an "alternative power" airplane. I finally found that the folks at SONEX, apparently working with the Aero-Conversions people, (VW Conversion specialists out of Oshkosh) have put together a proof-of-concept flying version of a practical electric airplane. Okay, it's "practical" if 45 minutes is your typical flight profile. Hey, I know a lot of builders of experimental aircraft who get less flight time than that! It would work for me in the Florida Keys. You go out and fly for half an hour in the morning, bypass the fuel pump on landing, plug it in, and go fly again in the afternoon. The engineering is fascinating. The motor is the size of a coffee can. Well, yes, the batteries do take up a the rest of the room. But, it looks like it is all "firewall forward," I'd still like to tuck a fuel cell in there somewhere. You could do this in a 701, couldn't you? See it at THIS LINK. -- Frank Derfler -- Daily Discussions of All the Guy Toys that aren't (clearly) illegal or (blatantly) immoral at my Blog http://MOSTLYFLYING.blogspot.com - Pilots learn about flights to great places at www.FLYINFLORIDA.COM -Boaters get the Best Information on Cruising the Florida Keys at www.KEYSBOATER.com -For the Best Gifts for Guys see my www.GREATGUYBOOKS.com


    Message 11


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    Time: 07:44:17 AM PST US
    From: "Bob Unternaehrer" <shilocom@mcmsys.com>
    Subject: Re: 601 and wing failiers
    >>I'd have to guess >> the wing is considerable stronger without the wing locker>> I wouldn't worry about the wing locker area, as I'm sure heinz has put adequate doublers in the wing locker area. Highest stress in positive G mode for the top area should be nearer the fuselage. Bob U. ----- Original Message ----- From: steve To: zenith-list@matronics.com Sent: Thursday, December 20, 2007 7:07 AM Subject: Re: Zenith-List: Re: 601 and wing failiers <notsew_evets@frontiernet.net> Yes. You are the builder and do the actually cutting and installation. I m just now finishing the lockers and the addition of the rear panel is beefy. Probably stronger than the plain ol skin. How ever, even with the extra "baggage" space, I kinda wish I would have waited to hear the outcome of this thread before installing..... Steve 601 XL QBK ----- Original Message ----- From: "Iberplanes IGL" <iberplanes@gmail.com> To: <zenith-list@matronics.com> Sent: Thursday, December 20, 2007 5:54 AM Subject: Re: Zenith-List: Re: 601 and wing failiers <iberplanes@gmail.com> > > Hi, > > Is it possible not to install the wing lockers even if you have ordered > them? I=B4m waiting my crate to arrive in january, but I=B4m re-thinking due > to the comments I=B4m reading here on not to construct that part. > > Please, tell me. > > > > ----- Original Message ----- > From: "ashontz" <ashontz@nbme.org> > To: <zenith-list@matronics.com> > Sent: Thursday, December 20, 2007 1:35 AM > Subject: Zenith-List: Re: 601 and wing failiers > > >> >> Is this the factory demo plane. It DOES NOT APPEAR to have the wing >> lockers. Personally, I'm very suspicious of the wing lockers. Granted, >> they may be fine in testing, but if the accident planes failed due to >> over stressing that would be where the stress would accumulate most, >> right at the wing locker area. Skins in tension are strong, skins in >> compression, or areas in compression where there are no skins, like the >> wing locker, would be particularly prone to failure first. If there is >> anything wrong with this design, I'd say this is it. I'd have to guess >> the wing is considerable stronger without the wing locker. Eliminate the >> locker and you eliminate one more stress point in an area that's already >> fairly stressed as it is as well as being even more diminished in >> capacity to deal with compression forces due to the locker. It would be >> interesting to see if these wings that failed also had wing lockers. >> Seems as those the wong locker idea is a carry-over from the 601HD wing >> loc! >> ker, the difference though is that the TRUE cantilever part of the wing >> on the HD is outboard of the wing locker area due to the fact that the >> wing on the HD is a three part deal, the 8 foot center section and two 8' >> outboard panels, both of which are solid and shorter and the wing locker >> is essentially part of the center wing section, not part of the seperate >> and shorter wing panels. >> >> [quote="ggower_99(at)yahoo.com"]One thing that gives me trust in the >> design are the lots of hours that some of the older 601 XL have already >> acumulated. Not mentioning the previous 601 series (HD; HDS, UL). >> >> The factory prototype has the same wings since his first flight and is >> a plane that is flying every day as a demo, also travels a lot to Fly >> ins and Aviation events... >> >> I am also waiting for the results of the investigations of this >> accidents, I dont know how long they might take to be released, mean >> time, I will continue building and will fly mine when finished. >> Yes, I am extra carefull with our building process and double check >> every step, I want to be sure that I build it safe in my side. >> >> >> Saludos >> Gary Gower >> Flying from Chapala, Mexico >> 701 912S Flying >> 601 XL Jab 3300 building. >> >> annken100 wrote: >> >> The issue of wing failures and the safety of the 601 design has been >> hashed out, debated, speculated on, and generally beaten to death in >> previous threads. A simple search of the archives will bring you up to >> speed. >> >> Not being a structural, mechanical, or aeronautical engineer, I can't say >> with any authority that the design is safe or unsafe. However, the few >> past wing failures appear to be a result of pilot error or ambiguous >> mechanical defects. No one knows for sure. >> >> The conclusion I draw is that the 601 is safe based on the ample number >> of planes that are flying that haven't had wing failures. Considering >> that most 601's are assembled by amateur airplane Find them fast with >> Yahoo! Search. >>> [b] >> >> >> -------- >> Andy Shontz >> CH601XL - Corvair >> www.mykitlog.com/ashontz >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=153162#153162 >> >> >> >> >> >> >> >> >> >> > > > > > >


    Message 12


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    Time: 07:54:35 AM PST US
    From: "Iberplanes IGL" <iberplanes@gmail.com>
    Subject: Re: 601 and wing failiers
    Hi list, That is a BAD idea. Today a friend of mime just told me a about a well known Zephyr pilot that crash and was dead for that reason. His hangar was next to ours.. It would change the way the wing is supposed to act and move "between limits". Take care, ----- Original Message ----- From: "Gig Giacona" <wr.giacona@suddenlink.net> Sent: Friday, December 21, 2007 4:18 PM Subject: Zenith-List: Re: 601 and wing failiers > <wr.giacona@suddenlink.net> > > Probably a bad idea. Other than the obvious weight penalty you would have > to do a complete engineering test to see how the weight out in the wings > would effect g-loading. > > > John75142 wrote: >> Just a thought and it probably ain't a good one but what about filling >> certain cavities with a low expansion foam. >> >> >> --- > > > -------- > 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=153505#153505 > > >


    Message 13


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    Time: 08:06:54 AM PST US
    From: "Bob Unternaehrer" <shilocom@mcmsys.com>
    Subject: Re: Seat elevating divices
    Most any photo program can resize them. I use U-lead photo explorer which is generic program available to download free I think and it sort of does it automatically. It offers you an option every time you send a photo to use "smart send" which reduces them a bunch, not sure how much but they generally seem to end up around 50Kb size. bob U. ----- Original Message ----- From: Terry Phillips To: zenith-list@matronics.com Sent: Thursday, December 20, 2007 6:22 PM Subject: Re: Zenith-List: Seat elevating divices Bob Assuming you are running Win XP, Go to: http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx or, if that long URL doesn't work, go to http://tinyurl.com/2meyw and download the application Image Resizer. It is free from Microsoft and will reduce .jpg's to ~40-50 kB for a 768x1024 screen. It works like a charm. There are also some other nice utilities there. The xp-powertoys are basically things that should have been in xp, but, apparently, were not ready in time. Terry At 01:21 PM 12/20/2007 -0600, you wrote: When I attempted to send out pictures of how I raised my seats, the system rejected all of them for being too large. I have tried everything I know to reduce the size of the pictures and nothing seem to work so all who would like to see these pictures, please send me a good e-mail address and I will send them direct to you. Bob Stone Harker Heights, Tx ZodiacXL w/Jabiru 3300 Terry Phillips ttp44~at~rkymtn.net Corvallis MT 601XL/Jab 3300 slow build kit - Tail is finished; working on the wings http://www.mykitlog.com/N47TP/


    Message 14


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    Time: 09:37:46 AM PST US
    Subject: Re: 601xl Project For Sale
    From: "Kemter" <james.kemter@us.army.mil>
    Sale Pending. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153539#153539


    Message 15


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    Time: 10:20:12 AM PST US
    From: "John Short" <creativesigns@embarqmail.com>
    Subject: Re: 601 and wing failiers
    Sounds reasonable it would probably stiffen the structure to much. Well I said it is was just a thought and probably a bad one but for a second it kind of made sense. Merry Christmas to all. ----- Original Message ----- From: "Iberplanes IGL" <iberplanes@gmail.com> Sent: Friday, December 21, 2007 9:53 AM Subject: Re: Zenith-List: Re: 601 and wing failiers > > Hi list, > > That is a BAD idea. Today a friend of mime just told me a about a well > known Zephyr pilot that crash and was dead for that reason. His hangar was > next to ours.. It would change the way the wing is supposed to act and > move "between limits". > > Take care, > > > ----- Original Message ----- > From: "Gig Giacona" <wr.giacona@suddenlink.net> > To: <zenith-list@matronics.com> > Sent: Friday, December 21, 2007 4:18 PM > Subject: Zenith-List: Re: 601 and wing failiers > > >> <wr.giacona@suddenlink.net> >> >> Probably a bad idea. Other than the obvious weight penalty you would have >> to do a complete engineering test to see how the weight out in the wings >> would effect g-loading. >> >> >> >> John75142 wrote: >>> Just a thought and it probably ain't a good one but what about filling >>> certain cavities with a low expansion foam. >>> >>> >>> --- >> >> >> -------- >> 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=153505#153505 >> >> >> >> >> >> >> >> >> >> > > >


    Message 16


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    Time: 11:26:02 AM PST US
    From: craig@craigandjean.com
    Subject: Re: Metric W & B
    Tell me where the "English" ones are and I'll convert them. It shouldn't be hard. -- Craig Quoting Darryl Legg <dlegg@tpg.com.au>: > > Hi Group, > I have come across a couple of very well laid out weight & balance > Excel sheets, but only with weights in pounds and fuel in gallons. > Has anyone made/know of one in metric kgs/litres for us metricated > people down under. > Thanks, > Darryl. > >


    Message 17


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    Time: 11:41:14 AM PST US
    Subject: Re: 601 and wing failiers
    From: "PatrickW" <pwhoyt@yahoo.com>
    daveaustin2(at)primus.ca wrote: > Can I suggest changing all 6061T6 to 2024T3 for greater strength and making everything twice as thick? Could call it a "601 RV". Patrick XL/Corvair Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153557#153557


    Message 18


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    Time: 12:24:33 PM PST US
    Subject: Re: A Practical Electric Airplane
    From: "PatrickW" <pwhoyt@yahoo.com>
    I attended the press conference where John Monet spoke of this in public, and I took these photos of the plane and engine. http://picasaweb.google.com/Patrick.Hoyt/ElectricSonexN270DC Other notes from the press conference: A longer engine = more watts = more power. It's a "zero maintenance" motor. No user-serviceable parts. Total of 900 batteries in "10 packs". Charging and balancing is a challenge. Dangerous. (pieces removed so as to not be photographed). 270 volt DC, 200 amps, 16,000 KW hours. Doesn't care which direction the propeller turns. Prop brake...? Proof-of-Concept - not available at this time. Total Sonex investment to date is < $30k. Sonex is not planning anything related to diesel technology. Alternative energy seems to attract a lot of nut-cases. Sonex wants to keep a low profile. Patrick XL/Corvair Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153564#153564


    Message 19


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    Time: 01:00:27 PM PST US
    Subject: Re: Aluminum source in Minneapolis/ST Paul
    From: "kmccune" <kmccune@somtel.net>
    Yarde Metals out of stock until March! I ordered a small amount from Wicks, I am a little concerned about shipping, but we'll see. Kevin -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153567#153567


    Message 20


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    Time: 01:11:31 PM PST US
    From: rsteele@rjsit.com
    Subject: 601 and wing failiers
    I'm no aeronautical engineer and I've certainly never analyzed this wing, but I do have an engineering degree and you sort of get a feel for these things. In a positive G load, the upper skin probably carries no (structural - like the spar) load at all - it would be in compression and I'm pretty certain it's compressive strength is going to be considered zero for this purpose. It should actually have some amount of tension in from the lift generating forces. In negative G loads which are smaller than the positive, the upper skin would certainly be in tension, and carrying a small part of the load, but at the point where the lockers are located, the load won't be close to the maximum, which is at the wing root. Really, the issue is stiffness, which can be affected also. The big question is, do the added bits that make up the locker, along with the hole in the skin, increase or decrease the stiffness of that area of the wing. Ideally neither, and I'm betting, because I'm getting wing lockers, that this is the very close to the case. Don't forget that there are fasteners all the way around the cover which should make the cover act as a shear plate, so there likely very little lose of strength from the hole at all. Ron PS when I went on the demo ride, the plane was probably close to max gross due to my size, there was a gusty 25 knot wind blowing and we were doing max cruise. It was rough as all get-out. The plane was just as solid as you could possible want, and very stable. It just plain felt solid and in control. Much better an any Cessna I've been in in rough air. I don't have much experience in light planes and I was frankly surprised. -------- Original Message -------- Subject: Re: Zenith-List: Re: 601 and wing failiers From: "Bob Unternaehrer" <shilocom@mcmsys.com> >>I'd have to guess >> the wing is considerable stronger without the wing locker>> I wouldn't worry about the wing locker area, as I'm sure heinz has put adequate doublers in the wing locker area. Highest stress in positive G mode for the top area should be nearer the fuselage. Bob U. ----- Original Message ----- From: steve Sent: Thursday, December 20, 2007 7:07 AM Subject: Re: Zenith-List: Re: 601 and wing failiers <notsew_evets@frontiernet.net> Yes. You are the builder and do the actually cutting and installation. I m just now finishing the lockers and the addition of the rear panel is beefy. Probably stronger than the plain ol skin. How ever, even with the extra "baggage" space, I kinda wish I would have waited to hear the outcome of this thread before installing..... Steve 601 XL QBK ----- Original Message ----- From: "Iberplanes IGL" <iberplanes@gmail.com> Sent: Thursday, December 20, 2007 5:54 AM Subject: Re: Zenith-List: Re: 601 and wing failiers > > Hi, > > Is it possible not to install the wing lockers even if you have ordered > them? Im waiting my crate to arrive in january, but Im re-thinking due > to the comments Im reading here on not to construct that part. > > Please, tell me. > > > ----- Original Message ----- > From: "ashontz" <ashontz@nbme.org> > To: <zenith-list@matronics.com> > Sent: Thursday, December 20, 2007 1:35 AM > Subject: Zenith-List: Re: 601 and wing failiers > > >> >> Is this the factory demo plane. It DOES NOT APPEAR to have the wing >> lockers. Personally, I'm very suspicious of the wing lockers. Granted, >> they may be fine in testing, but if the accident planes failed due to >> over stressing that would be where the stress would accumulate most, >> right at the wing locker area. Skins in tension are strong, skins in >> compression, or areas in compression where there are no skins, like the >> wing locker, would be particularly prone to failure first. If there is >> anything wrong with this design, I'd say this is it. I'd have to guess >> the wing is considerable stronger without the wing locker. Eliminate the >> locker and you eliminate one more stress point in an area that's already >> fairly stressed as it is as well as being even more diminished in >> capacity to deal with compression forces due to the locker. It would be >> interesting to see if these wings that failed also had wing lockers. >> Seems as those the wong locker idea is a carry-over from the 601HD wing >> loc! >> ker, the difference though is that the TRUE cantilever part of the wing >> on the HD is outboard of the wing locker area due to the fact that the >> wing on the HD is a three part deal, the 8 foot center section and two 8' >> outboard panels, both of which are solid and shorter and the wing locker >> is essentially part of the center wing section, not part of the seperate >> and shorter wing panels. >> >> [quote="ggower_99(at)yahoo.com"]One thing that gives me trust in the >> design are the lots of hours that some of the older 601 XL have already >> acumulated. Not mentioning the previous 601 series (HD; HDS, UL). >> >> The factory prototype has the same wings since his first flight and is >> a plane that is flying every day as a demo, also travels a lot to Fly >> ins and Aviation events... >> >> I am also waiting for the results of the investigations of this >> accidents, I dont know how long they might take to be released, mean >> time, I will continue building and will fly mine when finished. >> Yes, I am extra carefull with our building process and double check >> every step, I want to be sure that I build it safe in my side. >> >> >> Saludos >> Gary Gower >> Flying from Chapala, Mexico >> 701 912S Flying >> 601 XL Jab 3300 building. >> >> annken100 wrote: >> >> The issue of wing failures and the safety of the 601 design has been >> hashed out, debated, speculated on, and generally beaten to death in >> previous threads. A simple search of the archives will bring you up to >> speed. >> >> Not being a structural, mechanical, or aeronautical engineer, I can't say >> with any authority that the design is safe or unsafe. However, the few >> past wing failures appear to be a result of pilot error or ambiguous >> mechanical defects. No one knows for sure. >> >> The conclusion I draw is that the 601 is safe based on the ample number >> of planes that are flying that haven't had wing failures. Considering >> that most 601's are assembled by amateur airplane Find them fast with >> Yahoo! Search. >>> [b] >> >> >> -------- >> Andy Shontz >> CH601XL - Corvair >> www.mykitlog.com/ashontz >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=153162#153162 >> >> >> >> >> >> >> >> >> >> > > > p; -- Please Support Your Lists This Month (And Get the Annual link Free href="http://www.matronics.com/contribution">http://www.matronics.com/c Thank you for your generous ; -Matt Dralle, List nbsp; Features Chat, --> http://www.matron====================== bsp; via the Web href="http://forums.matronics.com">http://forums.matronics.com


    Message 21


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    Time: 01:33:52 PM PST US
    From: "Aaron Gustafson" <agustafson@chartermi.net>
    Subject: Re: Lister accesability ?
    Thanks to all replyers. I've got a handle on it now. Aaron > I'm wondering why some people's posts have their email address included > in the message and some do not. I would sometimes reply directly to a > poster but do not want to reply to the whole list. If there is no address > I just forget about it.


    Message 22


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    Time: 01:42:00 PM PST US
    Subject: Re: A Practical Electric Airplane
    From: "Gig Giacona" <wr.giacona@suddenlink.net>
    That -------- 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=153572#153572


    Message 23


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    Time: 03:07:57 PM PST US
    From: "Carlos Sa" <carlossa52@gmail.com>
    Subject: A glitch on the (email) list (Was "A Practical Electric Airplane
    ") Interesting! Everything after (and including) the less-than sign does not show on the email version of the list... Carlos On 21/12/2007, Gig Giacona <wr.giacona@suddenlink.net> wrote: > > wr.giacona@suddenlink.net> > > That > > -------- > 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=153572#153572 > >


    Message 24


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    Time: 03:09:14 PM PST US
    Subject: Re: Metric W & B
    From: "Darryl Legg" <dlegg@tpg.com.au>
    Thanks Craig, I have added the file as an attachment. Its well done and I got it off www.ch601.org. Thanks for your time on this. Darryl do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=153588#153588 Attachments: http://forums.matronics.com//files/zodiac_xl_wb_final_139.xls


    Message 25


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    Time: 04:57:46 PM PST US
    From: Juan Vega <amyvega2005@earthlink.net>
    Subject: Re: 601 and wing failiers
    If you dont mind a 601 able only to cary one pasenger and 20 gallons of fuel. -----Original Message----- >From: PatrickW <pwhoyt@yahoo.com> >Sent: Dec 21, 2007 2:40 PM >To: zenith-list@matronics.com >Subject: Zenith-List: Re: 601 and wing failiers > > > >daveaustin2(at)primus.ca wrote: >> Can I suggest changing all 6061T6 to 2024T3 for greater strength and making everything twice as thick? > > >Could call it a "601 RV". > >Patrick >XL/Corvair > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=153557#153557 > >




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