themidge..... I'm sorry... what I was trying to convey was that to an experienced, well trained pilot it is no different from steering any other vehicle. As has been mentioned, there are various "cues" to assist. When I first learned to drive I wondered how it was actually possible to reverse round a corner.... until my instructor pointed out the little pin he had fixed into the rear window lining. All I had to do was to keep that in line with the kerb and all was well. (I've been driving 50+ years and have just dispensed with the pin!!).