Originally Posted by
Goldenrivett
Might have been in the old days Dave, but many modern Aircraft NAV Lights are powered on the ground by an AC BUS (e.g. Ground Service BUS).
No more flat batteries because Nigel forgot to turn off the lights.
Goldenrivett, Some modern a/c have a towing bus that is powered by batteries and a switch, 747-8 and the A350 to name but 2!