What is the duration of a Class 1 medical certificate for pilots over 40 engaging in single pilot operations?

For pilots over the age of 40 holding a Class 1 medical certificate, the duration is indeed 12 months for those engaging in single pilot operations. This is in line with the regulations set forth by aviation authorities, which impose more stringent medical requirements for older pilots due to the increased likelihood of age-related health conditions that could impact flight safety.

By requiring a biennial renewal of the medical certificate, authorities aim to ensure that all pilots maintain a standard of health that is conducive to safe flying. This frequency of assessment reflects the understanding that as pilots age, their medical status may change more significantly compared to younger pilots. Hence, while younger pilots may enjoy longer validity periods, older pilots are mandated to demonstrate their fitness to fly more frequently, thus ensuring safety in aviation operations.