Any city now or hereafter operating a municipal airport or municipal field for aviation purposes pursuant to K.S.A. 3-114 may, whenever in the opinion of the board of park commissioners or airport authority of such city the public safety, service and welfare will be advanced thereby, acquire within or without the city limits, by purchase, lease or otherwise, and equip, improve, operate, maintain and regulate additional or supplemental municipal airports or municipal fields for aviation purposes.
K.S.A. 3-118