FlightGlobal
• David Kaminski-Morrow
UAC puts modified flap arrangement for import-substituted MC-21-310 through tests
United Aircraft says it is testing a revised flap system for the MC-21-310 developed during import substitution. The inboard and outboard flaps are designed to converge when extended for takeoff and landing, but UAC says a cruise-flight “gap” remains, creating airflow leakage that must be managed.
