The A380 Airbus..

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"The A380 cabin also underwent a series of tests for certification, including the successful evacuation test, performed at Airbus' Hamburg site, Germany, on 26th March 2006. During this largest ever aircraft evacuation trial 853 passengers and 20 crew members left the aircraft within 78 seconds - 12 seconds less than required, validating 853 as the maximum passenger seating capacity, for the A380-800." The problem is, who is willing to jump out (or be pushed) on a emergency exit slide that is 4 to 5 stories high!