Electric propulsion engine for an aircraft

A propulsion system for an aircraft having a structural member, the propulsion system comprising:

• an electric propulsion engine configured to be mounted to the aircraft, the electric propulsion engine defining a central axis and comprising:
• an electric motor;
• a power gearbox mechanically coupled to the electric motor;
• a fan rotatable about the central axis of the electric propulsion engine by the electric motor through the power gearbox;
• a fan frame mounted about the central axis of the propulsion engine;
• and
• an attachment assembly for mounting at least one of the electric motor or the power gearbox, the attachment assembly including a torsional damper for accommodating torsional vibration of the electric motor or the power gearbox, wherein the attachment assembly is configured to mount the electric motor to at least one of the fan frame or the bulkhead of the aircraft, and wherein the torsional damper is positioned between the electric motor and the at least one of the fan frame or the bulkhead.