I can comment on Massey's statement about information withholding. I got into aircraft engineering "the long way around" as it were. I worked as a aircraft mechanic to finance my Master's degree and, when I finally did get my first real engineering gig, it wasn't in the aircraft industry. It was a good experience because the corporate culture there was just amazingly horrible. Equipment was falling apart for lack of regular care. Anybody who knew anything kept it closely guarded. I mean more than merely not wanting to mentor new engineers. I'm talking about critical robotic machinery with no documented code, electrical panels that are a "rats nest" of all red wires, $600 gearboxes that regularly fail because nobody wants to turn loose of $2 in thier personal budjets to by oil. Never before or since have I seen anything that bad.
I can go on with specific examples but it wouldn't serve any purpose here. Like I said though, it was a good experience because it grounded me. I know how "bad" bad can be. When I have a "bad day at the office", I look back to those days and realize that it could be a lot worse.
The experience would help as I was trying to become a DER. At that time, I worked under a senior engineer that refused to teach me anything. I learned to rely on myself for my education. I also discovered that they had extensive documentation of prior projects. By studying those documents, I got the education that he wouldn't give me. There was one engineer in particular who was particularly thorough, but worked there about 2 generations before me. Nonetheless, I used to tell people at the time that I was getting my training from him.
Eventually, I gained a reputation for being the "go-to" person for solving unusual or complex problems. Over time, I got the attention of someone who offered me a better position. Meanwhile, my boss was in the process of passing me over for promotion. Needless to say, I took the outside offer. My exit interview was pretty glowing - they tried to talk me into staying. However, I had already made up my mind.
Based on these experiences, I've made a personal decision that I will always share what I know with other engineers and will tend to associate more with engineers who are willing to extend to me the same courtesy.
....boy, this was longer than I though it was going to be.
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Joseph K. Mooney
Director, Airframe Structures - FAA DER
Delta Engineering Corporation