Patent ID: 7861971

Claim:
A system for opening and closing a landing-gear compartment of an aircraft comprising: a plurality of hatches mounted on a fairing of the aircraft, the plurality of hatches comprising main hatches with transversal opening and at least one secondary hatch with a longitudinal opening; said at least one secondary hatch has an outer surface that faces the outside of the aircraft and is flush with a fairing outer surface when in a closed position; a hinge system comprising: a mobile part; a fixed part, said fixed part has a rigid link with the fairing of the aircraft; said mobile part is linked to the fixed part and to the secondary hatch by rotating links; a linking element is fixed to a landing gear leg by a rigid link and is connected to the secondary hatch by a rotating link; and wherein said hinge system is configured to maintain the at least one secondary hatch parallel to the fairing outer surface during opening and in a fully open position.