tim,
please let me come in with a few general remarks. would appreciate your thoughts -- and thoughts of others .
there sometimes seems to me to be almost two different discussions of cooper. one concerns the hijacker, the other the jumper. the first was obviously very bold and had thought through what he was doing. (ordering the specific type of parachute. had informed himself about how long it took to refuel. etc. in short, evidence that he had prepared for the day. -- it was in my view a coincidence that someone tried the same thing 14 days eariler. cooper did not prepare this thing in 13 days.)
but when we get to the jump a lot of people start talking about how naive he was. i do not believe it. ( i do not say he survived-- i don't know of course). i see no reason why the bold but prudent hijacker suddenly transforms into the headless sky diver.
it occurs to me that he is alone in the cabin after the second take off. does one really know what he was wearing when he jumped? could he have had other clothing with him etc?. good that is speculation. but i still do not see how he can be so organized for the hijacking and depend on so much "luck" for the jump. certainly he took a gr eat risk and may have died; but i think he knew he was taking the risk.
one other point. you are interested in the man after the event. what interests me is the man who plans and carries it out. he is proud, he wants to pit his wit and will against a large organized group of people. there is a "social showdown" and then he pits his wit and skill against nature. no the man may have overextended himself. but he didn't leave anything to chance.