What is the maximum range from the last reported position that the search area can be expanded to for overdue aircraft?

The maximum range from the last reported position that the search area can be expanded to for overdue aircraft is 50 miles. This standard is based on established search and rescue guidelines, which take into account factors such as typical flight paths, potential drift due to weather conditions, and the time elapsed since the last known position. Expanding the search area to this distance allows for a comprehensive approach to locating overdue aircraft, ensuring that the search efforts are neither too limited nor excessively broad. This balance is crucial for effectively utilizing resources while maximizing the chances of locating the aircraft in a timely manner.