this auto pilot donot help much during take off and landing.l..... ( as auto takeoff or autolanding.)...
what it does is only help in keeping the wings level and get all the servos to flying level position once u leave all the controls.....( the sticks on the Tx)... if u get into trouble while flying allu have to do is leave the sticks and it will level out its self....
in case for takeoff.... u add power and pitch up.. the plane will keep level its self....same applies for landing.....
strongly recommended not to use this system... as u get more dependent on it and do not develop the flying skills ( most prob of the civilian aviation industry
)
if u need to learn flying then do some homework on the simulator and catch hold of some teacher/ instructor... or learn the hard way by crashing ( again not recommended.......)