6-20-1 Local government airport improvement contracts--Authorization, issuance, and sale of revenue bonds. 6-20-2 Contents of authorizing resolution or ordinance. 6-20-3 Adoption of resolution by airport board--Approval by governing body. 6-20-4 Minimum revenues for issuance of bonds--Items includable in estimated future revenues. 6-20-5 Funds available for payment of bonds--Pledge of revenue from future facilities. 6-20-6 Revenues available for operation and maintenance of airport--Taxing power not used to liquidate bonds--Exceptions. 6-20-7 Covenants respecting operation and maintenance of airport. 6-20-8 Default in payment of bonds--Mismanagement of airport--Appointment of receiver for payment of bonds--Restoration of airport to local control.