Thanks Herod and SNS3Guppy.
It must be a bit disconcerting sitting at the pointy end but having such little control of a huge aircraft like the 747! I suppose that is why you need well-trained ground crew who know exactly what they are doing.
Do the crew help steer around corners from the flight deck also on smaller aircraft such as the 737 or A320? Can the same tug push/pull a B737 and a B777 (for example) or do you need more powerful tugs for heavier aircraft?