C of G on compound flying wing

[wireit]

Hi All,
This is for a new flying wing design I'm working on for AP. The C of G for the taper and straight section I can figure but the two together has me stumped... Any help out there?

Thanks,
joe

[raptor22]

If you know calculus, I'm sure its in here somewhere:
http://homepages.stmartin.edu/students/SeniorDesign_ME2004/Neutral_Point.htm

--Alex

[Sparky Paul]

That's a fairly poor drawing.
Leaves too much information off, has some which isn't needed.
Anyway, this site will find your m.a.c.
The c.g. position is up to you.
http://perso.wanadoo.fr/scherrer/matthieu/english/mce.html

[wireit]

I'll rework the drawing and re post it,
thanks for the link, It worked very well for my needs.
joe

[HankF]

compute it for an average chord. Typically it's at 1/4 chord from the LE but it needs to be at the point on the particular airfoil that produces 0 pitching moment and the airfoil should have 0 pitching moment through out the wing's angle of attack envelope.

Hank

[Ollie]

More questions for CG for tailless wings for washout and stability numbers.
http://www.b2streamlines.com/OTW.html