What is the maximum airspeed for the extension and retraction of landing gear?

The maximum airspeed for the extension and retraction of landing gear is crucial for ensuring the safety and integrity of the aircraft's landing gear system. In many aircraft, extending or retracting the landing gear beyond a certain airspeed can lead to structural stress or operational malfunction of the gear mechanism. The correct answer indicates that the maximum airspeed for safe operation during these procedures is 140 KCAS (Knots Calibrated Airspeed).

This parameter is established based on the aircraft’s design and aerodynamic characteristics. Operating within this limit allows the landing gear to deploy or retract successfully without risking damage. Exceeding this speed could result in the gear not locking into position properly or experiencing increased wear and tear.

The other options represent speeds that exceed the acceptable limits for gear operation, which could pose a risk during critical phases of flight. Proper adherence to these specifications is vital for maintaining aircraft safety and operational effectiveness.