Finding the CG on a RC Plane
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Uploaded by nitroplanes on Apr 23, 2011
Check out this video on how to find the Center of Gravity on your RC Plane. If you have any questions, please comment on the comment box below.
Check out www.nitroplanes.com for your RC Plane needs.
- 101 likes, 6 dislikes
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Top Comments
All Comments (33)
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I have an easier way of finding the GC: Look at the plans that came with the plane. It is marked on there.
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Well I agree a tail heavy plane is the worst to fly and almost impossible to land. I had my 1400mm P-47 way way way too tail heavy on the first flight. The trick I used that kept it in one piece is when you land, land almost completely with throttle control. The reason is that when your plane is tail heavy the elevator will drastically affect the plane. So, if you use throttle, and a tiny tiny amount of elevator, you might be lucky enough to keep it relatively unharmed. not guaranteed but helps.
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Hey Antonio
How about on a delta style ing where the thickness is pretty even and flat. I do use KF2 airfoil on my deltas, but always have a hard time finding the CG.
Can you help?
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I have a J3 cub 1800mm wingsp. Havent had maiden yet, but will it be an idea to have it a bit nose heavy?
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Great vid - very informative.
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30% of the wing tip is CG
thumbs up so nitro planes can see
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As some stated this is one type of wing and does not apply to all wings. If you want true CG for all types of wings just google CG Calculator for accurate CG.
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Swept jet wing... the hard part is finding "MAC"
(won't let me put in link to picture... nsrca org technical tip_tricks mac_cg )
CG will still be appx 30% MAC for conventional (most airplanes) configuration or 15% for Delta or flying wing.
Consider a plane with small horizontal stab, close to the main wing as being a flying wing.
For "canards"... it gets even more complicated
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Now can you make a video like this one for swept jet wings?
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I looked around for a long time trying to find info on Cg as it related to RC airplanes. Great to have this video out there!
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the phrase I've always used is "A nose heavy plane may fly poorly, but a tail heavy plane flies once"
ddrlankyj 10 months ago 17
Very informative. I like these type of vids because I think sometimes RC flyers overlook CG and the like. I know I did when I first started out. Nicely done!
optimistONE 10 months ago 5