Some time ago we've visited the San Diego's USS Midway aircraft carrier (now museum). There was an old air-force gentleman, explaining various bits, I don't re

Some time ago we've visited the San Diego's USS Midway aircraft carrier (now museum). There was an old air-force gentleman, explaining various bits, I don't remember everything, but this one: So basically, he was asked why air pilots were asked to raise their hands (visibly) before taking off. And the explanation was, that this is to make sure that they are not fiddling with the plane, such that whoever works on the ropes (up front the plane), is safe, and can prepare the plane for taking off. Apparently, there were lots of hotshots, and you can't trust them :) (Probably my memory is not serving me alright in all details, but it was something along the lines, if anyone can provide more detailed material - it'll be great! I would like to share it with my father too - an ex air military officer)