ORIGINAL: wagz
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.
wagz,
I've used the geistware ever since discovering it and if you give it a 10% and then a 20% SM, you'll have an excellent CG range to work from.
If you choose to use the forward CG, you'll probably need to have decent elevator throw. If you choose the 10% or rear CG, or a CG close to that far back, you need to be prepared for the elevator throw to WORK WELL.