Patent ID: 7575193
Filing Date: 2009-08-18
Classification: B64C

Abstract:
1. An on-board anti-crash method for an undercarriage ( 2 ) of an aircraft ( 1 ), said undercarriage ( 2 ) being of the retractable type, and comprises: a landing gear leg ( a retraction actuator ( first anti-crash means for acting during a first stage of a crash to damp shortening of the undercarriage ( second anti-crash means ( wherein, during a second stage of a crash, after the end of the first stage, the method comprises: functionally separating the landing gear leg ( retaining and blocking the retraction actuator ( once the actuator ( wherein the step of braking pivoting is performed at least in part by a stage of irreversibly lengthening of a deformable connection ( the lengthening stage is performed at least in part by a stage of extending by partial destruction a nonpermanent connection ( said connection (