The rules that use the category "<aircraft_type-pl>" are:

<aircraft_id-not_creatable>

<aircraft_type-pl> <id_num-pl>

<ordinal-pl> <aircraft_type-pl>

<bare_vehicle_id>

<aircraft_type-pl> <id_num-pl>

<ordinal-pl> <aircraft_type-pl>

<aircraft_id-not_creatable-pl>

<aircraft_type-pl> <id_num-pl>

<ordinal-pl> <aircraft_type-pl>