Originally Posted by
Ftrooppilot
"retake cockpit " riot starts in back. Steep turns and altitude changes puts all back in their seats. Climb above 40,000 feet, put on oxygen mask, dump cabin pressure. Cabin O2 system does not cope with 40,000 feet pressure altitude. Time of useful conscienceless probably about 30 seconds. Five minutes later most are deceased. Descent to lower altitude, engage autopilot, sit back and wait for fuel to run out.
It's beginning to sound like the person in the cockpit knew what he was doing.
The high-altitude recon perspective.
Unfortunately this make sense and there are no big loopholes.
I couldn't see one pilot locking the other out and then taking the airplane on an hours-long excursion...with a pilot and 100 ABPs they would eventually have gotten back into the cockpit. But dumping the cabin would limit mobility in the cabin and eventually they would run out of O2.