Patent ID: 8640823

Claim:
A device for limiting aerodynamic noise from a deployed aircraft undercarriage, having a hollow pin ( 1 ), while landing and/or takeoff, the device comprising: two end plates ( 4 a , 4 b ) for closing respective ends ( 2 a , 2 b ) of the hollow pin ( 1 ) of the undercarriage, and at least one tie ( 6 ) disposed inside the hollow pin ( 1 ) to connect the two end plates ( 4 a , 4 b ) together so as to hold them pressed against the ends ( 2 a , 2 b ) of the hollow pin ( 1 ), wherein the end plates ( 4 a , 4 b ) and/or the tie ( 6 ) are made of natural hemp or flax fibers agglomerated in a resin of reusable type.