Was there maybe a building or other structure around the take-off end of the runway, with a crash-box that was a little bit too big and over lapped enough to give you the crash? Not at the other runway. so you could take-off safely?
I'll test it out and see if I can duplicate the problem. Project VietNam scenery package, maybe? Anyway, I'l let you know.
Just offering a possibility.
Pat☺