How Airplane Landing Gear Absorbs the Force of a 300-Ton Impact

A Boeing 777 touching down at its maximum landing weight carries over 1.1 million joules of vertical kinetic energy that must be absorbed in under a second — and the oleo-pneumatic strut does it by using compressed nitrogen as a spring and hydraulic oil through a metering orifice as the primary energy dissipator, converting 80 to 90 percent of the impact into heat rather than a bounce. We break down the exact mechanism, explain why the metering pin geometry controls the deceleration profile throughout the stroke, and show what happens to the attachment structure during the peak load fraction of a second at touchdown. The smoothness of every landing is not luck. It is precision engineering. Aircraft landing gear oleo strut explained, oleo pneumatic shock absorber aviation, landing gear energy absorption, Boeing 777 landing gear design, aircraft touchdown load engineering.