Where will you find the BTUs to charge the tugs? Isn't the theory that
the plane has free amps to spare either from an APU that must be running
anyway or batteries charged off the main engines while flying much like
free heat to warm your automobile.

"N93332" wrote in message
...
Just brainstorming so this may be a completely wrong idea.

If these electric motors are more effecient than running the engines
on the jets for taxi purposes and will save the airlines
'considerable' fuel costs for the taxi operations, do the electric
motors need to be 'installed' on the jets? How about using these
efficient electric motors on the tugs, use the tugs to push/pull the
jet from the gate all the way to the hold short line while the jet is
just idling. Then have the electric tugs 'race' down a taxiway to take
the arrivals back to a gate. This would mean more tugs and personnel
to drive them.

Just an (dumb?) idea....