Not really enough information to make a call one way or another. Knowing the size of the airplane and the power plant being used would make for more accurate suggestions. My current sport flyer is a 55cc powered Laser 200. I do not fly 3D just IMAC type flying. It has 5 servos and a ignition battery eliminator so the ignition is run off the same battery. I get roughly 90 min of actual flight time on a 3000 mah 2s lipo and regulator setup.