(not too sure if this post is in the right category. If not, I hope a moderator can point me in the right direction).
I am building an octa V with 8 motors (turnigy 2836/8) and 30Amps ESC.
I will power this with a 3cell battery 5000mAh (I think).
The length between the farthest motor on the arms of the octaV and the electronic/battery platform is about 38inch.
Should I plan to have the ESC next to the motors and have only 2 wires running along the arms of the copter, with a possible mass gain compared to the ESC on the main platform and 3 wires running to the motor? But then I have more mass near each motor, and expose possibly the ESC to shocks in case of rough landing.
what sort of AWG should I choose to fit, and overall minimize cable weight?
is there a simple rule I can use to estimate the most appropriate electric cable gauge?
any comment will help me.