| > Yes. Simply cut the positive wire from the ESC to the receiever and plug
| > a battery (or UBEC or SBEC) into a spare channel.
| That does NOT actually disable the on board BEC it just makes it so the
| ESC's BEC is just powering the ESC and not the full radio system.
That's true, but since the ESC uses very little 5v current (coming
from the BEC), it's not really a concern. The heat generated by the
BEC will be very minimal since the current is very minimal, even if
the voltage involved is high.
| That may be acceptable. If the unit has an on/off switch having it
| in the off position usually disconnects the internal BEC from the
| electronics, usually......
In the ESC+BEC's that I've seen that have an on/off switch, the switch
was wired to disconnect the positive wire. So there is no
(electrical) difference between cutting the wire and turning off the
In case somebody isn't aware, turning off the ESC switch is not a good
way to turn off your plane (though it's probably ok for the walk from
the runway to the pits.) The ESC is still powered, so it'll slowly
discharge your battery, and I imagine that in an extreme case (extreme
RFI perhaps?) it's possible (though unlikely) for the motor to roar to
life, even with that switch off. Instead, disconnect the battery and
Doug McLaren, firstname.lastname@example.org
My inferiority complex is not as good as yours.
Click to see the full signature.