"You can hand launch these systems without adverse effects?   I know my other *unnamed" systems have very low tolerance for any movements after booting and before flight..  I am thinking about installing the Ardu on a multi...

The crash does look…"

"I like the Castle 10A BEC unit as it appears to be fairly quiet and has plenty of power on reserve for radio, servos or other accessories..  "

"Assuming you have the throttle channel setup on the transmitter (CH1 or CH3)
You may need to calibrate the ESC..
REMOVE PROP/REMOVE PROP/REMOVE PROP
Turn on transmitter and push to full throttle
Power up the ESC.. after the first series of beeps…"

"Have had set up a couple different auto pilot systems and having had made my share of errors in setups... it sounds to me as though you may need to "up" your test altitudes...  I had a $1000 airframe do a 90º nose dive at 50knts upon the first…"