Matmax, no disrespect to engineers who clearly do a great and very important job within their fields, but to my knowledge, no engineer is allowed to TAXI an aircraft.
You may well be sitting in the pilots' seat operating such important devices as the park brake, APU and even the beacon, but sadly you are not in control and have absolutely no baring on where the Aircraft is headed when transporting it from a hangar to the line...... That my friend is the responsibility of the tug driver.
