METHOD AND SYSTEM FOR GOVERNING AN ENGINE AT LOW POWER

There are described methods and systems for operating an aircraft (100) having two or more engines (102, 104). One method comprises operating the two or more engines (102, 104) of the aircraft (100) in an asymmetric operating regime, wherein a first of the engines (102, 104) is in an active mode to provide motive power to the aircraft (100) and a second of the engines (102, 104) is in a standby mode to provide substantially no motive power to the aircraft (100); governing the first engine (102, 104) in the active mode using a first governing logic (306); and governing the second engine (102, 104) in the standby mode using a second governing logic (308), the second governing logic (308) based on a target compressor speed (418) and variable geometry mechanism (VGM) settings (420) that are adjusted using trim values dependent on at least one parameter of the second engine (102, 104) in the standby mode.