Search for the Hanger 9 Edge540 thread; there are dozens of threads on this forum with everything you ever wanted to know about this plane.

I have the Hanger 9 Edge and I use a Saito 180 with 16x8 apc. All up weight is 12lbs. I simply love it and never fails to impress onlookers.

Two servos on elevator installed in the servo bay. Other servos installed as normal. I use a 24oz tank. Use high torque servos especially on rudder and elevator.

Have fun,
Vim