How to tune a large hexacopter with ArduCopter Autotune

My friend asked if I could have a look at his Tarot 690, it has a Pixhawk running Arducopter. This is a feature not to go past with multirotors. Tuning is super easy, see here http://ardupilot.org/copter/docs/autotune.html LiPo alarms come in lots of flavours, it is this sort of thing that I use https://www.amazon.com/Battery-Tester-Voltage-Buzzer-Alarm/dp/B005GJCJOA Don't miss out on any of our latest videos, subscribe https://goo.gl/PMFYQb Other places you can find us: https://www.suasnews.com https://www.facebook.com/suasnews https://www.twitter.com/suasnews http://www.suasnews.com/suasguide