Abstract: A substitution device for replacing a turbojet type of aircraft engine, with a nacelle comprising protective covers, and a support mast having two engine mounts, each of said protective covers being mounted to pivot between an open position and a closed position, said substitution device comprising a body, two anchors attaching to the engine mounts of the engine support mast, and bearing portions adapted to receive support portions belonging to the protective covers. A method for installing such a substitution device in a nacelle, which makes it possible to close the engine covers and authorize the movement of the aircraft.

Abstract: A system for following the handling of an aircraft engine includes a cradle which supports the engine and stands which are spread out under the cradle. Each stand includes a seating configured to secure the stand on the ground, an actuating cylinder secured to the seating and having a translationally mobile piston, a fixing structure secured to the exterior end of the piston and configured to be fixed to the cradle, and a fluid source which causes the piston to be raised or lowered. Each stand also includes a detector designed to detect an inappropriate movement of the piston and a blocking which blocks the piston from moving when the detector detects an inappropriate movement of the piston. Thus, when an inappropriate movement of the piston is detected, the blocking blocks the movement of the cradle and prevents it from tipping.

Abstract: The disclosure herein relates to an engine-handling following system for handling of an aircraft engine, including a cradle which supports the engine, and stands spread out under the cradle. Each stand includes seating intended for seating the stand on the ground, an actuating cylinder secured to the seating and having a translationally mobile piston, fixing structure secured to the exterior end of the piston and intended to be fixed to the cradle, and a supply intended alternately to cause the piston to be raised or lowered. Each stand also includes a detector to detect an inappropriate movement of the piston, and blocking to block the movement of the piston when the detector detects an inappropriate movement of the piston. Thus, when an inappropriate movement of the piston is detected, the blocking blocks the cradle and prevents it from tipping.

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.