Zenith-List Digest Archive

Tue 12/25/07


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     1. 05:45 AM - 0200 Engine Mount (wade jones)
     2. 05:46 AM - Re: A Christmas Story (Tommy Walker)
     3. 06:27 AM - Re: Canopy Gas Struts (Springs) (Tommy Walker)
     4. 07:14 AM - Re: Re: Canopy Gas Struts (Springs) (Iberplanes IGL)
     5. 12:19 PM - Re: Recovery from flutter601Wing Failures - a different perspective601Wing (Mack Kreizenbeck)
     6. 05:12 PM - Re: Aircraft Spruce Streamlined Tubing (kmccune)
     7. 05:47 PM - Re: Re: Aircraft Spruce Streamlined Tubing (David Downey)
     8. 06:58 PM - Re: Aircraft Spruce Streamlined Tubing (kmccune)
     9. 09:20 PM - Re: Recovery from flutter (MaxNr@aol.com)
    10. 11:25 PM - test (Richard Cottingham)
 
 
 


Message 1


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    Time: 05:45:12 AM PST US
    From: "wade jones" <wjones@brazoriainet.com>
    Subject: 0200 Engine Mount
    Hello group ,hope all of you are having a Merry Christmas . I am ready to build my engine mount for my 601 .I will be using either my newly purchased 0235 Franklin or my 0200 Cont. (they both fit the same mount). I have been studying the plans but I could use some more help .Could anyone on the list send me a picture of a completed 0200 mount or perhaps a cad drawing showing a 3D view . Thanks Wade Jones South Texas 601XL plans building Cont. 0200


    Message 2


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    Time: 05:46:37 AM PST US
    Subject: Re: A Christmas Story
    From: "Tommy Walker" <twalker@cableone.net>
    Thanks for that Gig.... Tommy Walker in Alabama N8701 Do Not Archive -------- Tommy Walker Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154158#154158


    Message 3


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    Time: 06:27:20 AM PST US
    Subject: Re: Canopy Gas Struts (Springs)
    From: "Tommy Walker" <twalker@cableone.net>
    Craig, That compares with a situation the guy in the next hangar told me about. a guy with a 601 at my field told me this; he forgot to securely latch the canopy on the right side. After takeoff, he noticed it due to the noise. He attempted to pull the right side down and latch it securely. This guy is about 6 4 and is a bear of a man. He said he couldnt get it down, so he decided to loosen the left side so that he could level the canopy and then pull both sides down and close the latches. Big Mistake. He said the canopy immediately went to about 45 degrees and he entered a steep dive. He was able to reduce power, level off and gain control over the airplane. At full power, he was not able to climb, as the canopy acted like a speed brake. At full power, he headed back to the airport at his present level and was able to land. He said everything that was unsecured (insecured?) err, not secure, in the airplane departed, including extra headsets, gps, log books, etc. Regards, Tommy Walker in Alabama N8701 18.5 hrs P.S. Please don't take this as criticism of the 601 design. The PIC is responsible for making sure the canopy is secure before takeoff. [quote=" www.evektoramerica.com/SportStarPlus.htm The canopy popped while we were in the pattern. I would estimate that the gap was well over a foot. While the instructor flew I tried to close the canopy. I wrapped my arm around the cross-bar and used all my weight and strength and could not close the canopy. At best I think I got the gap down to 6-8 inches. Evector redesigned the latch the next year. I believe the upward force was generated by lift and not wind under the canopy as it did not decrease as I closed the gap. -- Craig[/quote] -------- Tommy Walker Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154165#154165


    Message 4


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    Time: 07:14:18 AM PST US
    From: "Iberplanes IGL" <iberplanes@gmail.com>
    Subject: Re: Canopy Gas Struts (Springs)
    To all of you, BSCL : BEFORE START CHECK LIST. Thats mandatory and have to include tha canopy latch check, Happy new Year !! ----- Original Message ----- From: "Tommy Walker" <twalker@cableone.net> Sent: Tuesday, December 25, 2007 3:26 PM Subject: Zenith-List: Re: Canopy Gas Struts (Springs) > > Craig, > > That compares with a situation the guy in the next hangar told me about. > > a guy with a 601 at my field told me this; he forgot to securely latch the > canopy on the right side. After takeoff, he noticed it due to the noise. > He attempted to pull the right side down and latch it securely. This guy > is about 6?T 4? and is a bear of a man. He said he couldn?Tt get it > down, so he decided to loosen the left side so that he could level the > canopy and then pull both sides down and close the latches. > > Big Mistake. > > He said the canopy immediately went to about 45 degrees and he entered a > steep dive. He was able to reduce power, level off and gain control over > the airplane. At full power, he was not able to climb, as the canopy > acted like a speed brake.? At full power, he headed back to the airport > at his present level and was able to land. He said everything that was > unsecured (insecured?) err, not secure, in the airplane departed, > including extra headsets, gps, log books, etc. > > > Regards, > > Tommy Walker in Alabama > N8701 18.5 hrs > > P.S. Please don't take this as criticism of the 601 design. The PIC is > responsible for making sure the canopy is secure before takeoff. > > [quote=" > www.evektoramerica.com/SportStarPlus.htm > > The canopy popped while we were in the pattern. I would estimate that the > gap was well over a foot. While the instructor flew I tried to close the > canopy. I wrapped my arm around the cross-bar and used all my weight and > strength and could not close the canopy. At best I think I got the gap > down to 6-8 inches. Evector redesigned the latch the next year. > > I believe the upward force was generated by lift and not wind under the > canopy as it did not decrease as I closed the gap. > > -- Craig[/quote] > > -------- > Tommy Walker > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=154165#154165 > > >


    Message 5


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    Time: 12:19:56 PM PST US
    From: "Mack Kreizenbeck" <aprazer@cableone.net>
    Subject: Re: Zenith-List:Recovery from flutter601Wing Failures - a
    different perspective601Wing Carl and Scott, Thanks for your input -- I'm sure that it may save someone's life. I hope to never experience this problem! Scott said that Paul Mulwitz, Tony Graziano and Bob Archibald had some excellent suggestions regarding recovery. I must have missed those! Mack 601XL N990MK


    Message 6


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    Time: 05:12:33 PM PST US
    Subject: Re: Aircraft Spruce Streamlined Tubing
    From: "kmccune" <kmccune@somtel.net>
    I don't understand "pad" and flat on parallel" Kevin Quote: "Also the drawn tube does not have the "pad" on the inside making flat an parallel mounting interface - you will have to create something to affect the same result." -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154262#154262


    Message 7


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    Time: 05:47:02 PM PST US
    From: David Downey <planecrazydld@yahoo.com>
    Subject: Re: Aircraft Spruce Streamlined Tubing
    Hi Kevin; The extruded strut forms from Carlson are teardrop shaped on the outside but in the area of maximum section thickness there are flats on the inside that are parallel to each other so that when you clamp on a block or whatever there is maximum surface contact. In those areas the wall gets thicker because the outside is curving and the inside walls are flat and parallel. The drawn tube is just like circular drawn tube except that the section is similar to streamline steel strut tubing (very nearly constant wall thickness). When you make the attachments for the end fittings they need to be shaped like the inside of the drawn tubing or some consideration given to stability of the joint. Hoe that is clearer - I may not speak the same english! I don't understand "pad" and flat on parallel" Kevin Quote: "Also the drawn tube does not have the "pad" on the inside making flat an parallel mounting interface - you will have to create something to affect the same result." -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154262#154262 Dave Downey Harleysville (SE) PA 100 HP Corvair --------------------------------- Never miss a thing. Make Yahoo your homepage.


    Message 8


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    Time: 06:58:32 PM PST US
    Subject: Re: Aircraft Spruce Streamlined Tubing
    From: "kmccune" <kmccune@somtel.net>
    So... you need to make a plug to fit inside, to bolt to the wing? Kevin -------- Kevin Read this topic online here: http://forums.matronics.com/viewtopic.php?p=154273#154273


    Message 9


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    Time: 09:20:03 PM PST US
    From: MaxNr@aol.com
    Subject: Re: Zenith-List:Recovery from flutter
    This discussion about the safety of the 601 series wings may or may should be a matter of concern. Not to me. I have confidence in the design and the designer. If there are some that would like another layer of security, this country boy -- clodhopper humbly offers the suggestion that one could construct their top and bottom wing skins with the next heavier sheet size. It would add a small increase in weight but would stiffen up the structure somewhat. Many builders are now doing this in the fuselage without a second thought. Another way to stiffen the wing would be to add drag braces internally like a rag-wing. Even I don't think much of that idea. Bob 601XL Do not archive ************************************** See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)


    Message 10


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    Time: 11:25:35 PM PST US
    From: "Richard Cottingham" <mrd@wn.com.au>
    Subject: test
    test do not archive --




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