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

<aircraft_id-not_creatable-sing>

<aircraft_type-sing> <id_num-sing>

<ordinal-sing> <aircraft_type-sing>

<aircraft_id-not_creatable>

<aircraft_type-sing> <id_num-sing>

<ordinal-sing> <aircraft_type-sing>

<bare_vehicle_id>

<aircraft_type-sing> <id_num-sing>

<ordinal-sing> <aircraft_type-sing>