Is 4572 meters (15 400 feet), a barometric.

DRIVE UNIT THRUST VECTOR CONTROL FOUR-CHANNEL SERVOACTUATORS MAIN LANDING GEAR VALVES FOUR-CHANNEL SERVOACTUATORS MAIN LANDING GEAR NOSE WHEEL ACTUATORS STEERING MAIN LANDING GEAR DIMENSIONS AND WEIGHT WING SPAN .................. 23.79 m (78.06 FT) 1ЕМОТН..................... 37.24 т (122.17 ЕТ) HEIGHT: xx essct ERR 17.25 m (56.58 FT) TREAD WIDTH ................ 6.91 m (22.67 FT) GROSS TAKEOFF WEIGHT ....... VARIABLE GROSS LANDING WEIGHT........