(a) The board of supervisors may acquire by grant, lease, purchase or, where appropriate, eminent domain any property located inside or outside the boundaries of the township which in the judgment of the board of supervisors may be necessary to establish and maintain municipal airport facilities. Any township having acquired land for those purposes may establish, equip, condition, operate and maintain the property as a municipal airport, may lease all or part of the property to any individual or corporation desiring to use the property for aviation purposes and may contract in the form of a lease of all or part of the property by the Federal Government for aviation purposes upon nominal rental or without consideration.

(b) The board of supervisors may acquire by lease or purchase land for aviation purposes jointly with any county or municipal corporation of this Commonwealth and operate and maintain the municipal airport jointly with any county or municipal corporation of this Commonwealth upon terms and conditions as may be agreed upon between the proper authorities of the county or municipal corporation.