What does the identifier KDTN refer to?

KDTN is the ICAO airport identifier for Shreveport Downtown Airport, located in Shreveport, Louisiana. In the ICAO coding system, the prefix 'K' identifies airports within the United States, while 'DTN' is a unique suffix that designates this specific airport. Shreveport Downtown is indeed a public-use airport, making it relevant in terms of aviation operations and procedures for pilots and air traffic controllers.

The other options do not correspond to KDTN. SZW is the identifier for a different location and is not an airport code. KSHV refers to Shreveport Regional Airport, which is a separate airport located in the same city but has a different ICAO identifier. Lastly, the Seminole VORTAC is a navigational aid, not an airport, and therefore does not fit as the correct answer. Understanding these distinctions is crucial for identifying airport codes and navigating the aviation system effectively.