After the D.B. Cooper affair, the next generation of 727's were equipped with the safety feature that PsyOp speaks of. At flight speed, a locking device is activated, and the doors will not open. This device is no longer installed on 727's and was never installed on any other aircraft that these gentlemen know of.
This is how it was explained to me by the pilots and mechanics: Think of the aircraft as a bottle and the door as a cork, but the cork is inside the bottle. Once the cabin is pressurized, and the plane at altitude and speed, the cork seals it self into the frame. All agree that no human would be strong enough to open the door while it is at altitude, cruising speed and the cabin is pressurized. This is the reason D.B. Cooper, had the pilot fly low and slow and depressurize the cabin. Once the speed is reduced and pressure is released by the lower altitude and cabin pressure is gone, then the door can be opened.
So PsyOp is correct in the fact that on some models of 727's, no person can physical open the door due to the locking mechanism.
Crowcreek could open the door if he depressurized the cabin first and got the pilot to lower his speed and altitude.
PsyOp, will you settle for $2.50?
Hell Yeah.
There will be NO compromise here; It's five bucks, one way or another. As good as your information is, it has no bearing on the outcome of MY bet, hard as that is for some to fathom !
The test takes place in whatever model plane is getting hijacked at the moment -- and I get to try ALL the doors . . .
;^)