Municipalities acting jointly as herein authorized shall create a board from the inhabitants of such municipalities for the purpose of acquiring property for, establishing, constructing, enlarging, improving, maintaining, equipping, operating and regulating the airports and other air navigation facilities and airport protection privileges to be jointly acquired, controlled, and operated. Such board shall consist of members to be appointed by the governing body of each municipality involved, the number to be appointed by each to be provided for by the agreement for the joint venture. Each member shall serve for such time and upon such terms as to compensation, if any, as may be provided for in the agreement.