How many unmanned aircraft operations can a remote pilot in command conduct at one time?

A remote pilot in command is limited to conducting one unmanned aircraft operation at a time to ensure the highest level of safety and control over the flight. This limitation is in place because managing multiple unmanned aircraft simultaneously could lead to critical oversights, increased risks of accidents, and a reduced ability to respond to emergencies.

By focusing on a single operation, the remote pilot can maintain a clear situational awareness of the aircraft's performance, the surrounding environment, and any potential hazards or changes in conditions. This regulation helps uphold safety standards and minimizes risks associated with unmanned aerial systems operations.

The other options suggest that a pilot could manage more than one aircraft at a time, which is not permissible under current regulations and guidelines governing unmanned aircraft operations.