What is used to prevent a rapid extension of an oleo shock strut after landing impact?

The use of air pressure valves is essential for controlling the extension of an oleo shock strut after landing impact. These valves manage the rate at which air is released from the strut, allowing for a gradual extension instead of a sudden one. When the landing gear absorbs the impact upon touchdown, the air pressure within the strut is crucial in stabilizing the aircraft and providing a smooth transition as forces are distributed during landing.

Through this controlled release of air, the oleo strut can cushion the impact effectively, enhancing passenger comfort and protecting the structural integrity of the aircraft. Proper regulation of air pressure is vital, as it directly impacts how quickly the strut extends. Without these valves, the potential for a rapid extension could lead to excessive stress on the landing gear assembly and discomfort for the occupants.

While hydraulic fluid plays a role in damping and load absorption within the strut system, it is the air pressure valves specifically that prevent rapid extension following the load transfer from landing, ensuring controlled and effective shock absorption.