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Foamies and Park Flyers 3D Foamies and Park Flyers are an EXCELLENT way to improve your reflexes and stick finesse


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Old 06-14-2012, 05:52 PM   #1
Heli_Jelly
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Default CG Formula

Anyone

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Old 06-18-2012, 11:04 AM   #2
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The best CG (center of gravity) for airplanes is different for each plane design. Usually measured in inches behind the leading edge of main wing near the fuselage (body). See if you can find a thread on your specific plane in this or other forums (try goggle) to see what CG folks are using. Or maybe contact builder to see what is recommended.
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Old 06-18-2012, 09:30 PM   #3
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On a conventional straight wing plane 1/3 of the way back from the leading edge is a good starting point. On swept wings or deltas or canards it is anybodies guess.
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Old 06-20-2012, 08:33 AM   #4
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Quote:
Originally Posted by marcoeldragon View Post
On a conventional straight wing plane 1/3 of the way back from the leading edge is a good starting point. On swept wings or deltas or canards it is anybodies guess.
Thanks ... Yeah it's for a delta wing.... Trial and error I guess.
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Old 06-20-2012, 09:26 AM   #5
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what kind of delta ya got?
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Old 06-21-2012, 09:15 AM   #6
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Quote:
Originally Posted by bradharvy View Post
what kind of delta ya got?
I'll take a pic today and post it... First attempt resulted in mild success with the wing being very pitchy.
There's a seller on eBay that sells a power package for 18 bucks. It includes Esc,motor,prop and motor mount. Anyhow before I spend alot if time on a wing design I want to figure out this cg problem.
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Old 06-26-2012, 09:53 AM   #7
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Best bet it so figure out where you think it should be, then move it forward.

Forward CG, plane flies poorly, but it flies.

Rearward CG, plane crashes.

Any questions?
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