Flight Modes Stabilize

Ardupilot will stabilize your plane during RC control. It smooths out your aircraft's movement and when you release the sticks, it will return to level flight.

This is a great mode for all users (it makes landing easy--you'll look like a pro), but is especially useful for beginners. If you get in trouble, just release the sticks and it will recover by itself, regardless of what crazy position it was in.