The difference between men and boys is the price of their toys!

This is serious RC (Radio Controlled) flying, this model of the C-17 must have taken thousands of hours to build and one single mistake will end your fun in a second, I suspect the ratio of build hours to fly hours is something like 1000 to 1. Can you imagine the poor guy having to explain to his wife “Honey you know that RC plane I was building for the last year?, well I broke it….”
You will note this thing has real jet engines.