What is VLO?

The term VLO refers to the maximum landing gear operating speed. This speed is critical as it indicates the highest speed at which the landing gear can be safely extended or retracted. Exceeding this speed while operating the landing gear may lead to structural failure or damage due to aerodynamic forces acting on the gear during the transition from the stowed to the extended position, or vice versa.

Understanding VLO is essential for safe flight operations, especially during critical phases of flight such as landing and takeoff when the gear is being manipulated. Pilots must be aware of VLO to ensure that they do not extend or retract the landing gear when the aircraft is traveling faster than this specified speed. Thus, recognizing and adhering to VLO is a fundamental aspect of managing the aircraft's operations safely.