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brothapig(at)HOTMAIL.COM
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 Posted: Sat Jan 20, 2007 9:25 am Post subject: Lightening hole flange length |
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Is there a rule of thumb to use for the length of the flange when flanging lightening holes? I can't seem to find it specified anywhere in the drawings. I'm thinking about using 15mm.
Ryan Vechinski
CH-701 -> starting on wings
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TxDave
Joined: 22 Jul 2006
Posts: 168
Location: Temple, TX
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| Posted: Sat Jan 20, 2007 1:28 pm Post subject: Re: Lightening hole flange length |
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Hey Ryan,
On page 17 of the ZAC construction manual for the 601 it shows the flange depth (note I said depth) should be 8mm. Looking at my wing ribs I'm pretty close to that.
DISCLAIMER FOR FLAMERS: THE 8MM FIGURE IS PER ZAC FLANGING DIE SPECS AND IS NOT BASED ON MY PERSONAL OPINION.
Dave Clay
www.daves601xl.com
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planecrazydld(at)yahoo.co
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| Posted: Sat Jan 20, 2007 2:46 pm Post subject: Lightening hole flange length |
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Also not set in stone but most of the production aircraft I have worked on have flanges about 1/4" wide around the lightning holes and the flange angle is usually between 30 and 45° from the web plane...
TxDave <dclaytx2(at)hotmail.com> wrote: [quote]--> Zenith-List message posted by: "TxDave"
Hey Ryan,
On page 17 of the ZAC construction manual for the 601 it shows the flange depth (note I said depth) should be 8mm. Looking at my wing ribs I'm pretty close to that.
DISCLAIMER FOR FLAMERS: THE 8MM FIGURE IS PER ZAC FLANGING DIE SPECS AND IS NOT BASED ON MY PERSONAL OPINION.
Dave Clay
www.daves601xl.com
Read this topic online [quote][b]
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brothapig(at)HOTMAIL.COM
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| Posted: Sun Jan 21, 2007 5:40 am Post subject: Lightening hole flange length |
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Thanks Dave!
I was looking only at the plans, and never looked in the construction manual. Sorry for the trouble!
Ryan
do not archive
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naumuk(at)alltel.net
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| Posted: Sun Jan 21, 2007 8:41 am Post subject: Lightening hole flange length |
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Ryan-
You're not the only one- the old builders' manual has tripped me up more
than once. Like for pitot tube location.
Bill Naumuk
HDS Fuselage
Townville, Pa
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