Originally Posted by
roberino
But the lever moves approx 1m to pull the door back from its seating by 1cm, so there is a ratio of 100:1, i.e. only 160 pounds of force is needed on the lever to move it away from the seal...
You're under the false impression that the door handle provides some sort of exponential leverage. It does not. It only disengages the latches. With the pressure from inside the cabin pressing against the door and the pins it would take far more force than 160lbs to open a door inflight. I would suspect that the door handle would break before the door opened as they were not designed to be put under that much pressure.
Last edited by ByrdluvsAWACO; Sep 21, 2011 at 2:10 am