Most airports in the United States don't have a control tower. Looking at the FAA Sectional there are hundreds of airports and knowing what services are available and what to expect when you get to the airport is important. First, we can tell whether the airport has a control tower or not, just by looking at the symbol. A magenta symbol indicates that an airport is non-towered, … [Read more...] about Uncontrolled Airport Diagrams – Sectional Chart