Originally Posted by
Coto Pilot
I don't get why any of this troubles anyone. The terms are nicknames, calling a corvette a vette or a thunderbird a T bird. American also calls the training center the school house. I was told that TK stood for technical knowledge. Who gives a crap? As long as the checks don't bounce I don't care if you call a 737 a 737, a 37, a 73 a guppy or anything else.
Guppy is an improvement. My dad was a controller when the 737 rolled out and for the first decade at least he claims it was referred to as a FLUF (Fat Little Ugly #%#ker) by the whole industry, at least the FAA.
That should blow some minds in today's PC world.