ATPL Navigation Practice Test

Timing for the second leg outbound in a holding pattern around a Non-Directional Beacon (NDB) should begin when the aircraft is abeam the holding fix. This is because the abeam position relative to the NDB provides a clear reference point for timing, ensuring that the outbound leg of the hold is appropriately synchronized with the established timing criteria. The purpose of this timing is to maintain a standardized distance and time away from the holding fix, which helps in predictable and controlled flight patterns. Establishing timing based on this reference minimizes variability and aids in maintaining consistent separation between aircraft in the holding pattern. It allows pilots to effectively manage navigation and ensures that the turns and legs conform to the intended holding pattern design. By using the abeam position as the timing trigger, you can more accurately assess the outbound leg's duration, enhancing situational awareness and adherence to known holding procedures.