Airbus A380-800 Brake test (Video) 1 discussions A380-800 Brake test in overweight landing situation. Dynamometer energy: 125.2 MJ Brake application speed: 90.07 m/s Stop distance: 1120 m Mean deceleration: 3.62 m/s/s Energy absorption rate: 5.04 MJ.. Tags: Airbus A380 A380-800 brake test overweight landing dynamometer energy speed deceleration fire plane crash heat smoke