The ICAO-defined code representing the wingspan category of an aircraft, used to determine airport compatibility, infrastructure requirements, and operational constraints.
See ICAO Aerodrome Reference Code (Skybrary)
‘A’ - < 15 m
‘B’ - 15 m but < 24 m
‘C’ - 24 m but < 36 m
‘D’ - 36 m but < 52 m
‘E’ - 52 m but < 65 m
‘F’ - 65 m but < 80 m