Ardupilot to fly Albabird XL VTOL plane-The Part1

This is to share my experience on how to use Ardupilot fly Albabird XL VTOL (both X4+1 and X4TiltRotor） Plane is XUWING Albabird XL www.xuwing.com
Part1 Video contents:
1. introductions on how and what flight controller to use
3. introduce basic calibrations for Flight controller hardware
4. basic parameters setting
have part1,part2, part3, part4, part5 and Maiden flight