Which feature provides shock absorption in the nose gear?

The oleo strut is the feature that provides shock absorption in the nose gear of an aircraft. An oleo strut operates using a combination of air and hydraulic fluid, allowing it to effectively dampen and absorb shock during landing and takeoff. When the aircraft lands, the strut compresses, and the hydraulic fluid is forced through an orifice, which helps to control the speed of compression and extend the strut gradually. This system not only facilitates smooth operation during ground movements but also helps maintain stability and control, reducing stress on the airframe.

The spring system, while present in some landing gear configurations, primarily supports the aircraft's weight rather than providing effective shock absorption like the oleo strut. An airbag system can be utilized in various applications but is not commonly found in nose gear configurations in aviation. Hydraulic shock absorbers are indeed used in various automotive and machinery applications but do not specifically refer to the kind of systems utilized in aircraft nose gears. The oleo strut remains the standard for shock absorption due to its proven effectiveness and efficiency in aviation.