Flyng Wing gravity center calculation - RC Groups
Feb 23, 2004, 08:46 AM
Registered User

# Flyng Wing gravity center calculation

Hi,

I want to build a flying wing but I have a problem : how can calculate position of gravity center ? .

By

Davide
 Feb 23, 2004, 06:04 PM Registered User What's the model?
Jun 05, 2004, 01:12 PM
Registered User

# Cg

usually on flying wings the center of gravity is around 15% of cord. swept wing may change this slightly.
 Jun 08, 2004, 12:51 AM Registered User you might try this: (for Flying Wings) Q = (R x R) + (R x T) + (T x T) divided by 6(R + T) P = R + 2T divided by 3(R + T) D = Q + SP WHERE R = Root Chord measurement T = Tip Chord measurement S = Sweepback of the leading edge measured at the tip D = The distance back from the tip of the nose to the point of balance(c.g.). AND where the core is standard shape and has a straight leading edge. (i.e. not curved) This comes pretty close (I found this formula in an article written by Jef Raskin) Luke Last edited by sylair; Jun 08, 2004 at 11:30 AM.
 Jun 08, 2004, 02:27 AM Will work for planes http://www.coloradogliders.com/tools.htm Use the CG calc at 15-20% @ the MAC Balance Point. Last edited by omega blood; Jun 08, 2004 at 02:31 AM.