The notion that the pilots could defend
the cockpit as a kind of fortress seems far too simplistic to me.

--
Emmanuel Gustin

it is very simple, the pilots have the ULTIMATE control, you cannot fight if
you cannot stand, and it is very hard to stand in a plane being thrown around
the sky, also, it is hard to fight when there is no air in the cabin, there is
another use for the cabin pressurization system, bleed off the pressure, and
everyone goes to sleep.
Matt Gunsch,
A&P,IA,Private Pilot
Riding member of the
2003 world champion drill team
Arizona Precision Motorcycle Drill Team
GWRRA,NRA,GOA