Sky9, there is another difference. Mate of mine tells a lovely story of how a train driver(named, Driver West) was looking round the Flt Deck (in the glory days when we could do that). He then turned to the Captain & claimed that he didn't think pilots were worth the money they get as they didn't seem to be doing anything & yet, he, the train driver, was bombing up & down the Glasgow-Euston trail at around 125 mph with anything upwards of 500 pax but got a lot less money. My mate, quietly turned to him & said, "well, at the moment, we are five miles above the planet earth ", 'YEAH', replied Driver West; "And, we are doing, around, eight miles every minute"; 'YEAH' said West," And, if anything goes wrong...............we can't stop";
!' said West, and disappeared back into the pax cabin.