Abstract: An aircraft engine stand for supporting an aircraft engine, has: a support; a mount rotatably mounted to the support, the mount extending around a central axis from a first end to a second end, the mount surrounding an engine-receiving space having an opening between the first end and the second end, the opening sized for allowing the aircraft engine to be positioned into and removed from the engine-receiving space, the mount rotatable relative to the support about the central axis and about a transverse axis intersecting the central axis; and an adaptor extending radially inwardly into the engine-receiving space relative to the central axis from a mounting interface removably secured to the mount to an engine interface removably securable to the aircraft engine.

Abstract: An aircraft engine stand for supporting an aircraft engine, has: a support; a mount rotatably mounted to the support, the mount extending around a central axis from a first end to a second end, the mount surrounding an engine-receiving space having an opening between the first end and the second end, the opening sized for allowing the aircraft engine to be positioned into and removed from the engine-receiving space, the mount rotatable relative to the support about the central axis and about a transverse axis intersecting the central axis; and an adaptor extending radially inwardly into the engine-receiving space relative to the central axis from a mounting interface removably secured to the mount to an engine interface removably securable to the aircraft engine.

Abstract: A battery replacement system for controlling a battery pack loadout for an aircraft includes a vehicle including a battery storage assembly, a controller, and a battery transfer assembly. The battery storage assembly is configured for storing at least one stored battery pack. The controller is configured to identify an energy storage prerequisite for a flight or series of flights of the aircraft using flight information for the aircraft and to identify a battery pack loadout plan for the aircraft using the energy storage prerequisite. The battery pack loadout plan identifies one or more of the at least one stored battery pack to be installed on the aircraft. The controller is further configured to control the battery pack loadout for the aircraft by controlling the battery transfer assembly to receive the one or more of the at least one stored battery pack from the battery storage assembly and install the one or more of the at least one stored battery pack into the aircraft.

Abstract: A battery replacement system for controlling a battery pack loadout for an aircraft having at least one installed battery pack includes a vehicle including a battery storage assembly, a controller, and a battery transfer assembly. The battery storage assembly is configured for storing at least one stored battery pack. The controller is configured to identify a state of charge for each of the at least one installed battery pack installed on the aircraft, identify an energy storage prerequisite for a flight or series of flights of the aircraft, and identify a battery pack loadout plan for the aircraft. The battery pack loadout plan identifies one or more of the at least one stored battery pack to be installed on the aircraft. The controller is further configured to control the battery pack loadout for the aircraft by controlling the battery transfer assembly to install the one or more of the at least one stored battery pack into the aircraft.