(a) For the purposes specified in AS 02.15.060 the department may, by purchase, gift, devise, lease, condemnation, or otherwise, acquire real or personal property, or any interest in the property including easements in airport hazards or land outside the boundaries of an airport or airport site, necessary to permit the removal, elimination, obstruction-marking, or obstruction-lighting of airport hazards, or to prevent the establishment of airport hazards. The department may acquire existing airports and air navigation facilities in the same manner except it may not acquire or take over an airport or air navigation facility owned or controlled by a municipality or person without the consent of the municipality or person.
(b) The department may, by sale, lease, or otherwise, dispose of all, a portion of, or an interest in a property, airport, or air navigation facility described in (a) of this section. The proceeds of any disposition shall be used for the purposes set out in this chapter.