Comment Re:There's a limit to what can be done (Score 1) 385
How many suicidal hijackings have there been? 3 - and the passengers had already realised on the day and changed their behaviour as #3 was in progress. The best defence against these hijacks was already in place by September 12th - the passengers.
How many suicidal pilot crashes have there been of jet airliners? At least 4.This one, Egypt Air 990, Mozambique Airlines TM470, Silk Air Flight 185, since 1999.
There's just no good defence against a suicidal pilot. Bear in mind that Egypt Air 990 went from level flight at FLA330 to the ocean in 43s, even thought the captain was back in the cockpit within 12s (no locked door then) and behind the controls no later than 27s.
Also bear in mind cockpits have at least one crash axe (for crashes and getting at electrical fires behind panels).
IMO the best thing to do would be to get rid of the locked doors. Whatever chance the other pilot has, it would surely be increased if other crew and/or passengers could easily and quickly get in to assist with any man-handling needed.