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skyguynca(at)skyguynca.co
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 Posted: Tue May 23, 2006 3:39 pm Post subject: Notations on scratch build plans |
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I worked on a CH601 kit before, but the scratch building plans have a
notation I can't figure out. I am probably just having a "stupid"
attack. I know T is thickness, L is length but what is DL?
David Mikesell
23597 N. Hwy 99
Acampo, CA 95220
209-609-8774
skyguynca(at)skyguynca.com
www.skyguynca.com
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lo2u
Joined: 11 Apr 2006
Posts: 46
Location: Upstate New York
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| Posted: Tue May 23, 2006 4:21 pm Post subject: Notations on scratch build plans |
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DL= developed length which is the length of the finished part ..If I am
wrong someone will surely tell us so..8^).
Ron Culver
Scratch 701 builder..
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martyn(at)flight.co.za
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| Posted: Tue May 23, 2006 10:39 pm Post subject: Notations on scratch build plans |
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Hi, it means the determined length! That is to say, the length of the
piece in question before it is bent to the shape required.
Now to those who have not fallen asleep by now :)My Questionis is this?
However that said, on the drawings, the standard L angle's dimensions are
given as:
On the CH 701 drawings L = 19 mm X A = 19 mm and T = 0.025", with a Dl of
36 mm. Now if you take the L and A and add them (that gives you the flat
length), I get 38 mm ?? But on the drawings the DL for the L angle 36mm.
Any answers would be appreciated!
Regards, DO NOT ARCHIVE
| Quote: |
<skyguynca(at)skyguynca.com>
I worked on a CH601 kit before, but the scratch building plans have a
notation I can't figure out. I am probably just having a "stupid"
attack. I know T is thickness, L is length but what is DL?
David Mikesell
23597 N. Hwy 99
Acampo, CA 95220
209-609-8774
skyguynca(at)skyguynca.com
www.skyguynca.com
|
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lnk(at)iowatelecom.net
Guest
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| Posted: Wed May 24, 2006 6:35 am Post subject: Notations on scratch build plans |
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| Quote: |
Hi, it means the determined length! That is to say, the length of the
piece in question before it is bent to the shape required.
Now to those who have not fallen asleep by now :)My Questionis is this?
However that said, on the drawings, the standard L angle's dimensions are
given as:
On the CH 701 drawings L = 19 mm X A = 19 mm and T = 0.025", with a Dl of
36 mm. Now if you take the L and A and add them (that gives you the flat
length), I get 38 mm ?? But on the drawings the DL for the L angle 36mm.
Any answers would be appreciated!
Regards, DO NOT ARCHIVE
>
> <skyguynca(at)skyguynca.com>
>
> I worked on a CH601 kit before, but the scratch building plans have a
> notation I can't figure out. I am probably just having a "stupid"
> attack. I know T is thickness, L is length but what is DL?
>
> David Mikesell
> 23597 N. Hwy 99
> Acampo, CA 95220
> 209-609-8774
> skyguynca(at)skyguynca.com
> www.skyguynca.com
|
The developed length is a function of the bend radius, a smaller radius
requires more material than a large radius plus factors like how hard the
material is and the method used to form it. Its a bit difficult to
explain without sketches but this link has a good set of pictures and
more detail than you will ever need.
http://www.sheetmetaldesign.com/WhitePapers/BendAllowance/SheetMetal-BendAllowance.pdf
When once you have tasted flight, you will forever walk the earth with
your eyes turned skyward, for there you have been, and there you will
always long to return.
- Leonardo da Vinci
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