The CTAF is primarily used when?

The Common Traffic Advisory Frequency (CTAF) is primarily used when the tower is closed. This frequency serves as a means for pilots to communicate with each other in the absence of air traffic control, ensuring safe and organized operations at an airport. When flying into or out of an airport that does not have an active control tower, pilots use the CTAF to announce their intentions, such as landing, taking off, or taxiing, thus enhancing situational awareness among all aircraft in the vicinity.

While it is true that pilots use other frequencies for various operations such as instrument approaches or departure clearances when the tower is operational, the primary function of CTAF is specifically geared toward managing traffic at uncontrolled airports or during times when the tower is not in service. This helps to create a safer flying environment by allowing pilots to share information about their positions and intentions with one another.