Flyng Wing gravity center calculation

[dav75]

Hi,

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

Thank in advance

By

Davide

[The Flying Pig]

What's the model?

[ETIGER05]

usually on flying wings the center of gravity is around 15% of cord. swept wing may change this slightly.

[sylair]

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

[omega blood]

http://www.coloradogliders.com/tools.htm :rolleyes:
Use the CG calc at 15-20% @ the MAC Balance Point. :cool: