RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Jim,
I have heard of some gluttens for punishment, but this project wins the award.
Marc
Sent with Wireless Sync from Verizon Wireless
Original Message
From: JIM EALY [EMAIL PROTECTED]
Date: 12/27/05 3:38 pm
To: Frank Deichsel [EMAIL PROTECTED]
Cc: RCSE posting' soaring@airage.com
Subj: Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank:
I still have the fuse from many years ago and I have set up a standard stick
wing. Hope to fly it at WC '06 or '07. I found a good set of info on the ASW
20CLX - extended wing with winglets. I am using Dr Drela's BD wing platform
for the wings, 3/16,5/32, and 1/8 hard balsa ribs (Lofted with Compufoil)
with 3/16 ply ribs at selected locations, full spar width vertical webbing, and
layered carbon spars. Cap rib side of LE with carbon and bottom of the TE.
Aileron sub spars generously capped with carbon. Carbon wing rod and tubes. By
the time you have the correct sized obechii, a proper spar built, and proper
vacuum bagging set up, etc, the ribs can be cut and the wing laid up RTC. IMHO
Happy building
Jim
PS:laying up and vacuum bagging those long wings could be a nightmare!
On Tue, 27 Dec 2005 11:01:31 +, Frank Deichsel wrote:
Thanks George, yes I have thought about that.
I am pondering though what thickness the cores are designed for. I have never
cut cores but I know that the thickness of the intended sheeting is considered
(deducted) so that after sheeting the desired airfoil shape is achieved. Or
does a millimeter more or less not matter that much? It's an older airfoil
anyway, FX60-126 if I remember correctly.
Thanks,
Frank
- Original Message -
From: George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10 AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank, I'm not familiar with this particular plane but I'd agree with you.
The obechi we get here in the US is going to be pretty thin on a 5M wing unless
you have a substantial spar system. Have you thought of using 2 layers of the
thin obechi?
George
--
From: Frank Deichsel [mailto:[EMAIL PROTECTED]
Sent: Monday, December 26, 2005 9:15 PM
To: RCSE posting
Subject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Hi,
I got a good deal on a 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher
Hobby. Unfortunately there are no plans included and I need to know what
thickness obechi the wing cores are cut for. I did some research but no
success. The common thickness for sheeting seems to be 1/42 here, but from what
I found that seems to be too thin for a 5 meter wing. There is a wing made by
Mueller in Germany in the same size which is sheeted with 1.2 mm which is
roughly twice as thick.
Any info would be appreciated!
Frank
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Thanks George, yes I have thought about
that.
I am pondering though what thickness the cores are
designed for. I have never cut cores but I know that the thickness of the
intended sheeting is considered (deducted) so that after sheeting the desired
airfoil shape is achieved. Or does a millimeter more or less not matter that
much? It's an older airfoil anyway, FX60-126 if I remember
correctly.
Thanks,
Frank
- Original Message -
From:
George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10
AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream
Catcher/Mark Smith Info Needed
Frank, I?m not
familiar with this particular plane but I?d agree with you. The obechi
we get here in the US is going to be pretty thin on a 5M wing unless you
have
a substantial spar system. Have you thought of using 2 layers of the
thin obechi?
George
From: Frank
Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005 9:15
PMTo: RCSE
postingSubject: [RCSE] 1/3
ASW-20 by Dream Catcher/Mark Smith Info
Needed
Hi,
I got a good deal on a 1/3
scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there
are no plans included and I need to know what thickness obechi the wing
cores
are cut for. I did some research but no success. The common thickness for
sheeting seems to be 1/42 here, but from what I found that seems to be too
thin for a 5 meter wing. There is a wing made by Mueller in
Germany in the same size which is
sheeted with 1.2 mm which is roughly twice as
thick.
Any info would be
appreciated
Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Anyone have Mark's ASW 20 fuse or kit for sale. I prefer just the fuse.
Ray Hayes
http://www.skybench.com
Home of Wood Crafters
- Original Message -
From: JIM EALY [EMAIL PROTECTED]
To: Frank Deichsel [EMAIL PROTECTED]
Cc: RCSE posting' soaring@airage.com
Sent: Tuesday, December 27, 2005 3:37 PM
Subject: Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank:
I still have the fuse from many years ago and I have set up a standard
stick
wing. Hope to fly it at WC '06 or '07. I found a good set of info on the
ASW
20CLX - extended wing with winglets. I am using Dr Drela's BD wing
platform
for the wings, 3/16,5/32, and 1/8 hard balsa ribs (Lofted with
Compufoil)
with 3/16 ply ribs at selected locations, full spar width vertical
webbing, and
layered carbon spars. Cap rib side of LE with carbon and bottom of the TE.
Aileron sub spars generously capped with carbon. Carbon wing rod and
tubes. By
the time you have the correct sized obechii, a proper spar built, and
proper
vacuum bagging set up, etc, the ribs can be cut and the wing laid up RTC.
IMHO
Happy building
Jim
PS:laying up and vacuum bagging those long wings could be a nightmare!
On Tue, 27 Dec 2005 11:01:31 +, Frank Deichsel wrote:
Thanks George, yes I have thought about that.
I am pondering though what thickness the cores are designed for. I have
never
cut cores but I know that the thickness of the intended sheeting is
considered
(deducted) so that after sheeting the desired airfoil shape is achieved.
Or
does a millimeter more or less not matter that much? It's an older airfoil
anyway, FX60-126 if I remember correctly.
Thanks,
Frank
- Original Message -
From: George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10 AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank, I'm not familiar with this particular plane but I'd agree with
you.
The obechi we get here in the US is going to be pretty thin on a 5M wing
unless
you have a substantial spar system. Have you thought of using 2 layers of
the
thin obechi?
George
--
From: Frank Deichsel [mailto:[EMAIL PROTECTED]
Sent: Monday, December 26, 2005 9:15 PM
To: RCSE posting
Subject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Hi,
I got a good deal on a 1/3 scale ASW-20 kit made by Mark Smith/Dream
Catcher
Hobby. Unfortunately there are no plans included and I need to know what
thickness obechi the wing cores are cut for. I did some research but no
success. The common thickness for sheeting seems to be 1/42 here, but from
what
I found that seems to be too thin for a 5 meter wing. There is a wing made
by
Mueller in Germany in the same size which is sheeted with 1.2 mm which is
roughly twice as thick.
Any info would be appreciated!
Frank
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BEHAVIOR: url(#default#VML)
}
w\:* {
BEHAVIOR: url(#default#VML)
}
.shape {
BEHAVIOR: url(#default#VML)
}
st1\:*{behavior:url(#default#ieooui) }
Thanks George, yes I have thought about
that.
I am pondering though what thickness the cores are
designed for. I have never cut cores but I know that the thickness of
the
intended sheeting is considered (deducted) so that after sheeting the
desired
airfoil shape is achieved. Or does a millimeter more or less not matter
that
much? It's an older airfoil anyway, FX60-126 if I remember
correctly.
Thanks,
Frank
- Original Message -
From:
George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10
AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream
Catcher/Mark Smith Info Needed
Frank, I'm not
familiar with this particular plane but I'd agree with you. The obechi
we get here in the US is going to be pretty thin on a 5M wing unless
you
have
a substantial spar system. Have you thought of using 2 layers of the
thin obechi?
George
From: Frank
Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005
9:15
PMTo: RCSE
postingSubject: [RCSE] 1/3
ASW-20 by Dream Catcher/Mark Smith Info
Needed
Hi,
I got a good deal on a 1/3
scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately
there
are no plans included and I need to know what thickness obechi the
wing
cores
are cut for. I did some research but no success. The common thickness
for
sheeting seems to be 1/42 here, but from what I found that seems to be
too
thin for a 5 meter wing. There is a wing made by Mueller in
Germany in the same size which is
sheeted with 1.2 mm which is roughly twice as
thick.
Any info would
RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank, Im not familiar with this particular plane but Id agree with you. The obechi we get here in the US is going to be pretty thin on a 5M wing unless you have a substantial spar system. Have you thought of using 2 layers of the thin obechi? George From: Frank Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005 9:15 PM To: RCSE posting Subject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed Hi, I got a good deal ona 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there are no plans included and I need to know what thickness obechi the wing cores are cut for. I did some research but no success. The common thickness for sheeting seems to be 1/42 here, but from what I found that seems to be too thin for a 5 meter wing. There is a wing made by Mueller in Germany in the same size which is sheeted with 1.2 mm which is roughly twice as thick. Any info would be appreciated! Frank
Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank, Sounds like you are taking on a project that may be a bit beyond your experience. No problem, just make sure you are getting good advice -- make sure that person has been there and done that. When you move from the usual stuff, like TD or smaller sailplanes to larger scale ships, especially 1/3 scale, the forces involved and therefore thebuilding techniques are different. I have built several larger scale ships. I've made a lot of mistakes for you. I have articles here. www.kcse.us, look under articles section To answer your question, no, regular US Obechi is not sufficient BY ITSELF as a skin for 1/3 wings IF the skin is your sole support for the wing. If you build a foam core wing with a spar system, then YES, US thickness obechi will work IF you also use some glass or carbon fiber beneath it as part of your composite construction. I have used, and recommend Avia sport pultruded carbon strips for the spar. It is part of a box spar that has been discussed and detailed by Dr. Drela. You can scale it up easily to your model's size using the Excel spreadsheet also availble at the site above. Good luck, any more questions, do not hesitate to contact me. Lee - Original Message - From: George Voss To: 'Frank Deichsel' ; 'RCSE posting' Sent: Tuesday, December 27, 2005 12:10 PM Subject: RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed Frank, Im not familiar with this particular plane but Id agree with you. The obechi we get here in the US is going to be pretty thin on a 5M wing unless you have a substantial spar system. Have you thought of using 2 layers of the thin obechi? George From: Frank Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005 9:15 PMTo: RCSE postingSubject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed Hi, I got a good deal ona 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there are no plans included and I need to know what thickness obechi the wing cores are cut for. I did some research but no success. The common thickness for sheeting seems to be 1/42 here, but from what I found that seems to be too thin for a 5 meter wing. There is a wing made by Mueller in Germany in the same size which is sheeted with 1.2 mm which is roughly twice as thick. Any info would be appreciated! Frank
Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Thanks George, yes I have thought about that. I am pondering though what thickness the cores are designed for. I have never cut cores but I know that the thickness of the intended sheeting is considered (deducted) so that after sheeting the desired airfoil shape is achieved. Or does a millimeter more or less not matter that much? It's an older airfoil anyway, FX60-126 if I remember correctly. Thanks, Frank - Original Message - From: George Voss To: 'Frank Deichsel' ; 'RCSE posting' Sent: Tuesday, December 27, 2005 10:10 AM Subject: RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed Frank, Im not familiar with this particular plane but Id agree with you. The obechi we get here in the US is going to be pretty thin on a 5M wing unless you have a substantial spar system. Have you thought of using 2 layers of the thin obechi? George From: Frank Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005 9:15 PMTo: RCSE postingSubject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed Hi, I got a good deal ona 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there are no plans included and I need to know what thickness obechi the wing cores are cut for. I did some research but no success. The common thickness for sheeting seems to be 1/42 here, but from what I found that seems to be too thin for a 5 meter wing. There is a wing made by Mueller in Germany in the same size which is sheeted with 1.2 mm which is roughly twice as thick. Any info would be appreciated! Frank
Re: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank:
I still have the fuse from many years ago and I have set up a standard stick
wing. Hope to fly it at WC '06 or '07. I found a good set of info on the ASW
20CLX - extended wing with winglets. I am using Dr Drela's BD wing platform
for the wings, 3/16,5/32, and 1/8 hard balsa ribs (Lofted with Compufoil)
with 3/16 ply ribs at selected locations, full spar width vertical webbing, and
layered carbon spars. Cap rib side of LE with carbon and bottom of the TE.
Aileron sub spars generously capped with carbon. Carbon wing rod and tubes. By
the time you have the correct sized obechii, a proper spar built, and proper
vacuum bagging set up, etc, the ribs can be cut and the wing laid up RTC. IMHO
Happy building
Jim
PS:laying up and vacuum bagging those long wings could be a nightmare!
On Tue, 27 Dec 2005 11:01:31 +, Frank Deichsel wrote:
Thanks George, yes I have thought about that.
I am pondering though what thickness the cores are designed for. I have never
cut cores but I know that the thickness of the intended sheeting is considered
(deducted) so that after sheeting the desired airfoil shape is achieved. Or
does a millimeter more or less not matter that much? It's an older airfoil
anyway, FX60-126 if I remember correctly.
Thanks,
Frank
- Original Message -
From: George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10 AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Frank, I'm not familiar with this particular plane but I'd agree with you.
The obechi we get here in the US is going to be pretty thin on a 5M wing unless
you have a substantial spar system. Have you thought of using 2 layers of the
thin obechi?
George
--
From: Frank Deichsel [mailto:[EMAIL PROTECTED]
Sent: Monday, December 26, 2005 9:15 PM
To: RCSE posting
Subject: [RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Hi,
I got a good deal on a 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher
Hobby. Unfortunately there are no plans included and I need to know what
thickness obechi the wing cores are cut for. I did some research but no
success. The common thickness for sheeting seems to be 1/42 here, but from what
I found that seems to be too thin for a 5 meter wing. There is a wing made by
Mueller in Germany in the same size which is sheeted with 1.2 mm which is
roughly twice as thick.
Any info would be appreciated!
Frank
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BEHAVIOR: url(#default#VML)
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w\:* {
BEHAVIOR: url(#default#VML)
}
.shape {
BEHAVIOR: url(#default#VML)
}
st1\:*{behavior:url(#default#ieooui) }
Thanks George, yes I have thought about
that.
I am pondering though what thickness the cores are
designed for. I have never cut cores but I know that the thickness of the
intended sheeting is considered (deducted) so that after sheeting the desired
airfoil shape is achieved. Or does a millimeter more or less not matter that
much? It's an older airfoil anyway, FX60-126 if I remember
correctly.
Thanks,
Frank
- Original Message -
From:
George Voss
To: 'Frank Deichsel' ; 'RCSE posting'
Sent: Tuesday, December 27, 2005 10:10
AM
Subject: RE: [RCSE] 1/3 ASW-20 by Dream
Catcher/Mark Smith Info Needed
Frank, Im not
familiar with this particular plane but Id agree with you. The obechi
we get here in the US is going to be pretty thin on a 5M wing unless you
have
a substantial spar system. Have you thought of using 2 layers of the
thin obechi?
George
From: Frank
Deichsel [mailto:[EMAIL PROTECTED] Sent: Monday, December 26, 2005 9:15
PMTo: RCSE
postingSubject: [RCSE] 1/3
ASW-20 by Dream Catcher/Mark Smith Info
Needed
Hi,
I got a good deal on a 1/3
scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there
are no plans included and I need to know what thickness obechi the wing
cores
are cut for. I did some research but no success. The common thickness for
sheeting seems to be 1/42 here, but from what I found that seems to be too
thin for a 5 meter wing. There is a wing made by Mueller in
Germany in the same size which is
sheeted with 1.2 mm which is roughly twice as
thick.
Any info would be
appreciated!
Frank
Jim Ealy
Education by Demonstration
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[RCSE] 1/3 ASW-20 by Dream Catcher/Mark Smith Info Needed
Hi, I got a good deal ona 1/3 scale ASW-20 kit made by Mark Smith/Dream Catcher Hobby. Unfortunately there are no plans included and I need to know what thickness obechi the wing cores are cut for. I did some research but no success. The common thickness for sheeting seems to be 1/42 here, but from what I found that seems to be too thin for a 5 meter wing. There is a wing made by Mueller in Germany in the same size which is sheeted with 1.2 mm which is roughly twice as thick. Any info would be appreciated! Frank
