What is the minimum airspeed for flap extension in the ERJ 170/175?

The minimum airspeed for flap extension in the ERJ 170/175 is specifically set to ensure safe and efficient flap deployment without risking a stall or excessive drag. This value is determined based on the aerodynamic characteristics of the aircraft and the performance thresholds defined in the aircraft's operating manual.

In the case of the ERJ 170/175, the correct minimum airspeed for initiating flap extension is indeed 130 KIAS (Knots Indicated Airspeed). This speed is a critical part of the aircraft's limitations, as it provides a buffer above stall speeds, allowing pilots to safely extend the flaps during the critical phases of flight such as approach and landing. By adhering to this minimum speed, pilots help ensure that the aircraft remains stable and controllable while the flaps are moving from the retracted position to the extended position, allowing for increased lift and drag as needed during descent and landing procedures.

Understanding and following this minimum airspeed is crucial for maintaining safety and efficiency in flight operations, especially during maneuvers that involve flap configuration changes.