"DSK" wrote in message
...

Southwest is one of the few truely profitable airlines, according to a
friend who is a pilot for American.

He said the secret of their profitability is that they only fly one type of
airplane, (the Boeing 737 at the time of our conversation). Their spare
parts inventory, technical maintenance staff, pilots and air crew only have
to support and be qualified in the one type of aircraft.

Eisboch