Abstract: A mechanical assembly, including: a control pulley including a plurality of compartments each delimited at least partially by a surface forming a stop, and a transmission mechanism including stop devices configured to engage in the compartments, such that actuation of the transmission mechanism will cause rotation of the control pulley, due to the stop devices engaged in the compartments coming up against the corresponding surfaces forming a stop. The transmission mechanism further includes a control rope made of a natural and/or synthetic material fitted with the stop devices.

Abstract: An engine attachment pylon for an aircraft including a rigid structure including a box including an upper spar and a lower spar, connected to each other through two lateral panels. At least one of the upper and lower ends of the web of at least one of the two lateral panels includes at least one assembly cleat projecting sideways from the web towards the outside of the box, and assembled to the spar on which it bears through an attachment mechanism located outside the inner space in the box.

Abstract: The invention relates to a pressurised aircraft door that minimises risk of ingress of precipitation inside the aircraft, while maintaining venting of the aircraft before unlocking the door. The purpose of the invention is achieved using a vent flap (15) controlled by a door control member (14) and designed such that the flap (15) successively occupies the following positions during the opening movement of the control member (14): a closed position when the control member (14) occupies a first end position putting the door in a closed/locked position; at least one partially open position before the door is in a closed/unlocked position; then once again in the closed position when the control member (14) occupies a second end position putting the door in an open position.