My tiny bit of nerdery around little-known airfields stems from being fascinated by the names and airport code of my city's main airport. What today is called t

My tiny bit of nerdery around little-known airfields stems from being fascinated by the names and airport code of my city's main airport. What today is called the Louisville Muhammed Ali International Airport has the code SDF and I find it fun to explain why that is and why the code doesn't seem to have anything to do with the name or the city. The airport was originally named "Standiford Field" named after a previous city mayor. It couldn't use the LOU code that better resembles the city name because it was already in use, by the city's other airfield, Bowman Field. (A WW1 era field, IIRC.) Bowman Field is not "little-known" enough to qualify for this website's criteria, but still a fascinating tiny airfield. Today it is now the oldest, continuously operating airfield in the country. Interestingly some of the nearly as old or slightly older airfields still operating today stopped operating only for the bare minimum time (at least a year) needed to switch airport codes with a larger, newer airport. At this point it's almost a point of civic pride that our largest airport has one of the most confusing airport codes, simply because the city didn't want to shut down a good old airfield still doing its job with smaller aircraft. (In the recent Muhammed Ali rebrand the city did briefly look into a code change, but even if ALI had been available, which a small Texas airfield uses today, UPS probably would not have been happy if they actually tried to change it.) (It's also fun to explain why SDF is an "International Airport" that almost never has international passenger flights. SDF is also home to UPS' "WorldPort" and is the central hub for the majority of UPS Air flights, so has tons of international cargo flights every day. If you get a package from UPS and it travelled by air, it probably passed through SDF.) Anyway, nerdy airfield facts.