What Does FDRI Stand For?

FDRI stands for Flight Director Rate Indicator

The Flight Director Rate Indicator (FDRI) is a critical aviation instrument that provides real-time data on the rate of climb or descent of an aircraft. It assists pilots in maintaining optimal flight paths by displaying the vertical speed in relation to the desired flight trajectory. The FDRI enhances situational awareness and supports decision-making during all phases of flight, particularly during takeoff, landing, and altitude adjustments.