Hey everyone,
I'm new and bought a trainer at an auction. It's in decent shape, and I have the ST engine running well. It had the servos, but I need to install the rest of the electronics. It looks almost identical to a Sig Kadet LT40. About the same dimensions. I have done research on calculating the center of gravity, and two sites I came across calculated it for you if you put in the info.

This site:http://www.geistware.com/rcmodeling/cg_calc.htm#cg gave me 4.52" from the LE
This site:http://adamone.rchomepage.com/cg_calc.htm gave me 4.99" from the LE. I used 10% for the static margin.

Both figures are more than the 25-35% of the MAC (11.74") recomended by these sites, especially the second one.

Any suggestions would be appreciated, Thanks.