Aircraft having an engine pylon with a mobile cowl

An aircraft comprising:

• a fixed structure,
• a wing,
• an engine, and
• an engine pylon fastened between the wing and the engine, the engine pylon having a primary structure configured to fasten the engine and the wing to each other, and a cowling system having:
• a front set of cowls, wherein the cowls are fastened around the primary structure,
• a slider bearing a mobile rear cowl disposed in a continuation of and at a rear of the front set of cowls, wherein the slider is able to move in translation parallel to a translation direction from an advanced position, in which the mobile rear cowl is in the continuation of and at the rear of the front set of cowls, to a retracted position, in which the mobile rear cowl is moved away, towards the rear, from the front set of cowls,
• a displacement system configured to move said slider and having, on either side of a median plane of the engine pylon, at least one guide as one with the fixed structure at a rear part of the mobile rear cowl in the advanced position, for each at least one guide, a sliding element as one with the slider and mounted so as to be able to slide along each guide disposed on the same side so as to realize a sliding connection, and, for each sliding element, a support as one with the fixed structure and having a blade parallel to the translation direction and on which a surface parallel to the translation direction of the slider rests, wherein each support is disposed at a front of the guides and generally in a middle of the sliding element when the slider is in the advanced position, and
• an immobilizing system alternately adopting a locked position in which the immobilizing system immobilizes the slider in the advanced position, and an unlocked position in which it does not immobilize the slider.