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daberti(at)sbcglobal.net
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 Posted: Sun May 02, 2010 9:13 am Post subject: Found anything out of the ordinary? |
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I'm sure there have been many update conversions completed by now. I'm wondering, has anyone found anything bent, pulled, loose or otherwise different than when you first assembled your aircraft? I may have missed posts on the issue over the last few months but feel the info relevant in finding a smoking gun..
Dave 601-HD 912ULS
[quote][b]
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DaveG601XL
Joined: 27 Oct 2006
Posts: 351
Location: Cincinnati, Oh
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| Posted: Sun May 02, 2010 4:08 pm Post subject: Re: Found anything out of the ordinary? |
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I had 116 hours and 1.5 years of flying time when I did my 601XL upgrade. Nothing at all out of the ordinary noticed during the process.
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David Gallagher
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Tim Juhl
Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan
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| Posted: Sat May 22, 2010 9:04 am Post subject: Re: Found anything out of the ordinary? |
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A fellow builder (of a 650) found a couple of spots on the rear spar that had been distorted by the ratchet straps used to pull the leading edge down.
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Juan Vega Jr
Joined: 13 Jan 2009
Posts: 157
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| Posted: Sat May 22, 2010 3:52 pm Post subject: Found anything out of the ordinary? |
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thats not a design flaw build a build flaw, which is what I think will be the conclussions to any future wrecks as well as pilot error.
Juan
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PatrickW
Joined: 27 Oct 2006
Posts: 380
Location: Fort Worth, Texas
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| Posted: Sun May 23, 2010 5:47 am Post subject: Re: Found anything out of the ordinary? |
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| Tim Juhl wrote: | | A fellow builder (of a 650) found a couple of spots on the rear spar that had been distorted by the ratchet straps used to pull the leading edge down. |
Ditto. On my left wing I had a ripple on the upper part of the rear spar about 4 inches inboard from the wing tip.
Haven't the faintest idea how it happened. Doubt if it would have been a problem way out there by the tip, but certainly it would be more concerning if it were inboard, or in the area of the aileron hole.
Some of these upgrade pieces really make a lot of sense, now that I'm digging into building a lot of this airplane for a second time. Like that angle that goes the length of the rear spar, and the aileron hole area doubler.
I'm very happy to be doing these upgrades.
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aprazer
Joined: 24 Nov 2006
Posts: 93
Location: Boise, Idaho
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| Posted: Mon May 24, 2010 7:31 am Post subject: Re: Found anything out of the ordinary? |
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Did any of you take pictures of the damage that you can share?
Mack
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Tim Juhl
Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan
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| Posted: Mon May 24, 2010 2:36 pm Post subject: Re: Found anything out of the ordinary? |
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Regarding the distortion of the spar. The fellow who had the problem with his 650 wing has already straightened it out without much difficulty. The airplane had never flown so it was definitely caused by the ratchet straps.
Sorry, no photos.
Tim
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Matt Ronics
Joined: 30 Apr 2007
Posts: 22
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| Posted: Wed May 26, 2010 8:30 pm Post subject: Re: Found anything out of the ordinary? |
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| Juan Vega Jr wrote: | thats not a design flaw build a build flaw, which is what I think will be the conclussions to any future wrecks as well as pilot error.
Juan
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I 'speculated' as such back in 2008. The problem with homebuilt aircraft design is that the designer is generally tasked with making a design that limits the ability of a builder to create "fatal flaws" in the construction process. It is one thing to design a plane to be built safely on an assembly line by trained aircraft manufacturers, quite another if the assembler is an accountant (with all due respect to the mechanical ability of accountants etc).
Rutan homebuilts, with all of their ~flaws, have remarkably few instances where poor construction methods in the garage have translated to a fatal failure. In other words, so long as the LongEz or Varieze builder attempted every step in the building manual, s/he can feel very safe that the plane won't come apart. Not so with the 601XL.
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