not all the panels on the crj are held closed by the slip stream. the oxygen service panel, external ac connecter, ac service panel, etc etc are straight opening panels. meaning if at the right time the panel is held open, it will stay open in flight, those doors arent built to close in the slip stream. there have been several crj takeoff aborts reported for the oxygen service panel door being left open. the smart guys at bombardier put that door right infront of the f.o.'s pitot static tube. at about 80 kts all the bells and whistles go off as the captains airspeed says 80 while the fo's fluctuates between 0 and 80.