Final answer:
To achieve optimal range and economy, the remote Pilot in Command must operate the sUAS at the recommended long-range cruise performance, ensuring the maximum efficiency of flight.
Step-by-step explanation:
When range and economy of operations are the principal goals, the remote Pilot in Command (PIC) must ensure that the Small Unmanned Aircraft System (sUAS) will be operated at the recommended long-range cruise performance. Operating at this performance setting helps to maximize the distance the sUAS can travel on a given amount of power or fuel, thereby increasing the efficiency of the flight. It is essential for the remote PIC to follow the manufacturer's guidelines to determine the optimal speed and power settings for long-range cruising.