What is the correct duration of inbound timing when holding at or below 14,000 feet?

The correct duration of inbound timing when holding at or below 14,000 feet is indeed 1 minute. This standard is established in accordance with FAA regulations and guidelines for holding patterns. When an aircraft is in a holding pattern, the inbound timing is critical for maintaining spacing between aircraft and ensuring safe and efficient operations.

For holds at or below 14,000 feet, a duration of 1 minute allows for predictable and manageable intervals between successive aircraft entering the hold. This time frame helps to promote efficient air traffic management by giving controllers sufficient notice to prepare for upcoming arrivals, as well as providing pilots with a clear understanding of how long to remain in the hold.

In contrast, longer durations like 1 1/2 minutes or 2 minutes are typically reserved for holds at higher altitudes, where the increased airspeed of the aircraft and the greater distances involved warrant more time in the pattern. The shorter option of 30 seconds would not provide enough time for most aircraft to adjust their position accurately in relation to the other aircraft in the holding pattern.