For the mini airplane instructable, what is the grey wire between the electric motor and batteries and what does it do?

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Sk8terthing (author) 8 years ago
ok and how do you ask the author something?
UziMonkey8 years ago
Which instructable? Link to it.
Sk8terthing (author)  UziMonkey8 years ago
ok right here
bastion728 years ago
It looks like it's the wires for power from the batteries to the motor.
jtobako8 years ago
Best would be to ask the author of the instructable in the comments section at the end, that way, if the author doesn't answer at least people know what you are refrencing : )