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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Carden Aircraft >> DSP Builders. Carden 330
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DSP Builders. Carden 330 - 5/8/2006 12:21:03 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Dave and Lonnie Jones of DSP Builders just finished a 330 for my buddy Larry Arseneau.
This thing is amazing. The pics wont do it justice but...



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Wayne
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RE: DSP Builders. Carden 330 - 5/8/2006 12:24:04 AM   
bubbagates



Posts: 8162
Joined: 5/30/2004
From: Elizabethtown, PA, USA
Status: offline 		absolutely GORGEOUS

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RE: DSP Builders. Carden 330 - 5/8/2006 3:45:45 AM   
btomlinson


 

Posts: 159
Joined: 5/27/2002
From: Southaven, MS, USA
Status: offline 		Very nice... Whats the weight ?

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RE: DSP Builders. Carden 330 - 5/8/2006 4:18:43 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Dont know...
Still needs to have the electronics installed.


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RE: DSP Builders. Carden 330 - 5/9/2006 1:07:36 AM   
cbk07


 

Posts: 537
Joined: 12/30/2001
From: farmington, CT, USA
Status: offline 		Wayne, that thing is beautiful!! He must be excited to try it out. Wish him luck!!!

Craig

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RE: DSP Builders. Carden 330 - 5/9/2006 1:16:50 AM   
zzw26n



Posts: 712
Joined: 5/18/2004
From: Shelby Twp., MI, USA
Status: offline

It looks Dead Solid Perfect !!!!

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RE: DSP Builders. Carden 330 - 5/9/2006 1:17:13 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Craig,

I'll let him know.
Hopefully it will be RTF in a few days and I can get my grubby little hands on it.


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RE: DSP Builders. Carden 330 - 5/9/2006 5:05:58 PM   
50%plane



Posts: 3759
Joined: 3/8/2005
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Status: offline

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RE: DSP Builders. Carden 330 - 5/11/2006 2:50:33 AM   
CAPtain232



Posts: 2467
Joined: 12/15/2001
From: Waynetown, IN, USA
Status: offline 		Wayne,

I would be interested to know what kind of stress you guys end up putting it through and how well the airframe holds up. We as builders are all the time trying to build light and really push it sometimes.....the obvious penalty is strength.

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RE: DSP Builders. Carden 330 - 5/11/2006 2:58:28 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Capt,

This one hasnt flown yet but I can tell you from seeing Mike McConnville's and Ivan Kristensen's lightened 330's and 260's for the last few years there wont be any problem with strength.
They are overbuilt to begin with and taking out some not needed structure hasnt hurt anyones plane.
Hard IMAC and 3D without issue for 100's of flights is what we are seeing.

The ideal weight IMO for one of these planes is 37.0 to 38.5 (with Cans) Thats very achievable with minimal effort.




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RE: DSP Builders. Carden 330 - 5/12/2006 1:33:26 AM   
CAPtain232



Posts: 2467
Joined: 12/15/2001
From: Waynetown, IN, USA
Status: offline 		Wayne,

I have been lightening many of these planes in much of the same ways. As time goes on, it seems we are taking more and more material out of them. I just like to keep tabs so if one ever does fail, then I know when I have removed too much.....hasn't happened yet!!!

Was there any foam removal on the plane anywhere? I have been honeycombing as much foam as possible lately. About the only things I don't do much to is the wings and stabs. I honeycomb the tips of the wings and stabs, but I don't get too far inward. Most people would say that you aren't going to lose much weight by removing foam, but believe IT ALL ADDS UP. I have a 40% CAP to build that I am shooting for 34.5 to 35 pounds with cans.

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RE: DSP Builders. Carden 330 - 5/12/2006 1:44:06 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Capt,

I think some of the foam was routed and I believe the bottom deck has large holes in it and no sheeting over the holes.
The real weight savings on the foam is if you can remove the foam, the sheeting over it and the glue that would be in that area.


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RE: DSP Builders. Carden 330 - 5/12/2006 3:01:13 AM   
CAPtain232



Posts: 2467
Joined: 12/15/2001
From: Waynetown, IN, USA
Status: offline
quote:

The real weight savings on the foam is if you can remove the foam, the sheeting over it and the glue that would be in that area.


You are absolutely right. The issues are curved surfaces. You can cut foam out of a curved surface, but if you cut even small holes after sheeting, you are going to see indentions in the covering. When you honeycomb the foam and THEN apply the sheeting, you will never see those indentions as long as the holes used to honeycomb aren't big holes. I typically make the hex holes 3/4" or less from flat side to flat side. I think I could make bigger holes and still have a great finished look, but 3/4" holes seem to leave the right amount of foam to maintain strength and great looks. Flat surfaces..... Prep the foam, glue the sheeting on and then cut your holes....NO PROBS

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CUSTOM GIANT SCALE BUILDER
PROTOTYPE MODEL BUILDING for full scale aircraft
current project can be seen at http://www.geversaircraft.com

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RE: DSP Builders. Carden 330 - 5/12/2006 3:13:19 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		On those curved surfaces where your making the Hex cuts are you really saving much weight? You still have the sheeting and glue over the holes.


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