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Old 02-03-2006, 08:08 PM
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magicman-goose
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Default C/G


does anyone have a good pattern for making a c/g finder ?
Old 02-04-2006, 12:20 AM
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Richard L.
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Default RE: C/G

What do you mean a good pattern? Do you mean a good equation?
Old 02-04-2006, 12:40 AM
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redfox435cat
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Default RE: C/G

how elaborate do you want. I remeber trying to come up with a decent set up with a couple dowls and a couple feet of 2x4's. I found it more cost effective to just get a GP CG machine, inded up being about 4 bucks more for this tool.
Using the ol pair of pencils method on my Sea Fury I thought my CG was close enough to try flying. upon setting it on the CG machine I found my CG off 1.5 inches tail heavy. I'm supprised the model even flew. This is a 60 sized model. Any 40 sized ship the pencils or your finger nails works pretty good
Old 02-04-2006, 06:43 AM
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ashley95
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Default RE: C/G

Why make one great planes sells one
good luck
Old 02-04-2006, 08:54 AM
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Stripes
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Default RE: C/G

Tie a string around the prop nut, run it up to a cup hook on the ceiling and then down to the tail. Roughly level the suspended plane. Some planes will hang better upside down. A plumb-bob from the cup hook will then point right to the CG. You will also get a good idea of what the lateral balance is too.
Old 02-04-2006, 01:10 PM
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jaka
 
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Default RE: C/G

Hi!
I always use my fingers to check the Cof G...done this for 31 years.....

Regards!
Jan K
Sweden
Old 02-04-2006, 04:56 PM
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magicman-goose
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Default RE: C/G

thanks jan just thought i would build one
Old 02-04-2006, 06:26 PM
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Lightfoot
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Default RE: C/G

There is a construction article for one on my web page.
Old 02-04-2006, 08:42 PM
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magicman-goose
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Default RE: C/G

th
thanks to everyone who has responded to my Q this is my first time to post on r/c thanks to all!!!!!!!!!!!!

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