Abstract: An improved aircraft engine stand is disclosed, which comprises a cradle assembly comprising a cable pulley system for controlling a vertical height of the cradle assembly with respect to a base assembly, and one or more cam follower rollers configured to engage with the base assembly for smooth vertical translation of the cradle assembly with respect to the base assembly.

Abstract: An improved aircraft engine stand is disclosed, which comprises a cradle comprising a cradle frame having first and second frame load transfer openings, first and second arm assemblies secured to the cradle frame and having first and second arm load transfer openings, and first and second load transfer pins shaped to be received in the load transfer openings. The frame load transfer openings can be aligned with the arm load transfer openings such that when the each load transfer pin is inserted into both a frame load transfer opening and an arm load transfer opening, lateral and axial loads placed on the arm assembly are transferred to the cradle frame.

Abstract: A facility for maintaining and servicing multiple units of equipment such as jet engines, after removal from an aircraft by conventional procedures, makes use of a multiple number of service bays serving as maintenance stations disposed on opposite sides of a central delivery way. An under hung bridge crane travels back and forth throughout the length of the central delivery way. Screw jacks at four corners of the crane are attached to and operate to elevate and lower a twin rail lifting bridge on which a jet engine unit is slung. The unit is supported by fixtures attached to trolleys which roll on the twin bridge rails. There is a mating twin rail lifting bridge in each bay with which the lifting bridge of the crane can temporarily interlock, so that the engine unit can be pushed on its trolleys from one lifting bridge to the other. Four corner located screw jacks also lift and lower the lifting bridge in each bay.