Caution and Warning Volumes
The RPIC receives an audible alert when a crewed aircraft has entered the caution volume which has a 3.1 mile radius and extends 750ft above and below the RPIC’s aircraft. This alert allows the RPIC to prepare to take action to deconflict if necessary. The caution volume is represented in Flight Alerter as a yellow ring.
Once a crewed aircraft has entered the caution volume, the warning volume becomes visible to the RPIC. The warning volume is dynamically calculated based on the crewed aircraft’s reported speed, altitude, and the RPIC’s aircraft speed. This dynamic calculation is done to ensure the RPIC has enough time to deconflict with the crewed aircraft. If the crewed aircraft enters the warning volume, an audible alert is given and the RPIC shall take action to deconflict. The warning volume is represented in Flight Alerter as a red ring.
