One example is Destin-Fort Walton Beach Airport, which utilizes the runway and ATC services of Eglin Air Force Base.
Charleston also has private fixed-base operators on the civilian side of the field catering to the general flying public.
The curfew system may result in airport congestion while the altitude restriction can cause long detours and greater fuel consumption.
Air traffic control at civil enclaves is usually entrusted to the armed forces or it may be a joint civilian-military crew.
It is common in the United States; many Air National Guard operations take place at smaller regional airports run by civil authorities.