Rotorcraft equipped with an aerodynamic device having a fairing provided with an air inlet

A rotorcraft comprising an aerodynamic device arranged below a rotor, which rotor participates at least in providing lift for the rotorcraft in the air, the rotor being mounted to rotate about an axis of rotation, the aerodynamic device comprising a fairing provided with at least one air inlet for enabling a stream of cool air to flow from a region that is situated outside the rotorcraft to another region that is situated inside the rotorcraft, the at least one air inlet being delimited by an outer peripheral portion of the fairing;

• wherein, at a mouth of the at least one air inlet of the fairing, the aerodynamic device comprises a perforated plate provided with at least one perforation, the at least one perforation, the stream of cool air being able to pass through the at least one perforation, the perforated plate comprising at least one main portion shaped to match an outer shape of the outer peripheral portion of the fairing.