(1) In addition to the powers which it may now have, any county without any election of the taxpaying or qualified electors thereof has the power under this article:

(a) To acquire by gift, purchase, lease, or exercise of the right of eminent domain, to construct, to reconstruct, to improve, to better, and to extend airport facilities, including any of them within the boundaries of any said county, and to acquire by gift, purchase, or the exercise of the right of eminent domain lands, easements, and rights in land in connection therewith;

(b) To accept loans or grants or both from the United States under any federal law in force to aid in financing the cost of engineering, architectural, or economic investigations or studies, surveys, designs, plans, working drawings, specifications, procedures, or other action preliminary to the construction of an airport;

(c) To accept loans or grants or both from the United States under any federal law in force for the construction or improvement of such airport or airport facilities or both;

(d) To prescribe, revise, and collect in advance or otherwise from any user of such facility or occupant of any real property connected therewith rentals, rates, fees, tolls, and charges, or any combination thereof, for the use of such airport facilities, including, without limiting the generality of the foregoing, landing fees, office rentals, franchise fees, and land and airport rentals; and, in anticipation of the collection of the revenues of such airport facilities, to issue revenue bonds to finance in whole or in part the cost of acquisition, construction, reconstruction, improvement, betterment, or extension of an airport;

(e) To pledge to the punctual payment of said bonds and interest thereon all or any part of the gross revenues arising from such airport facilities;

(f) To enter into and perform contracts or agreements concerning the planning, construction, lease, or other acquisition and the financing of airport facilities, and the maintenance and operation thereof;

(g) To make all contracts, execute all instruments, and do all things necessary or convenient in the exercise of the powers granted in this section or in the performance of its duties or in order to secure the payment of its bonds; but no encumbrance, mortgage, or other pledge of property, excluding any pledged revenues, of the county is created thereby no property, other than money, of the county is liable to be forfeited or taken in payment of said bonds, and no debt on the credit of the county is thereby incurred in any manner for any purpose.