<p>The system is used for taxiing an aircraft and comprises at least one multi-spool gas turbine engine (10), the engine (10) having an electrical motor (30) in a torque-driving engagement with a low pressure spool of the engine (10). The low pressure spool has a propulsor (12) connected thereon to generate thrust when rotated. A controller (34) is connected to the electrical motor (30) and an electrical power source (32) to control an amount of electrical power provided from the power source (32) to the electrical motor (30) so as to drive the propulsor (12) and cause at least a major portion of the thrust to be generated by the propulsor (12) for moving the aircraft during taxiing.</p>