Engine degradation management via multi-engine mechanical power control

A method comprising:

• monitoring, by a controller of two or more engines that are configured to jointly provide mechanical power to a multi-engine power system, one or more operating parameters of each of a first engine and a second engine of the two or more engines:
• estimating, by the controller, a deterioration factor of the first engine based on the one or more operating parameters of the first engine, wherein the first engine is configured to supply mechanical power to a first propulsor or a first generator;
• estimating, by the controller a deterioration factor of the second engine based on the one or more operating parameters of the second engine, wherein the second engine is configured to supply mechanical power to a second propulsor or a second generator, different from the first propulsor or the first generator;
• adjusting, by the controller and based on the deterioration factor of the first engine, a first amount of mechanical power being provided by the first engine to extend a service time of the first engine;
• and
• adjusting, by the controller and based on the deterioration factor of the second engine, a second amount of mechanical power being provided by the second engine to at least partially compensate for the adjustment to the first amount of mechanical power.

A multi-engine power system comprising:

• at least a first engine and a second engine configured to jointly provide mechanical power to the multi-engine power system;
• and
• a controller configured to:
• monitor one or more operating parameters of each of the first engine and the second engine;
• estimate a deterioration factor of the first engine based on the one or more operating parameters of the first engine, wherein the first engine is configured to supply mechanical power to a first propulsor or a first generator;
• estimate a deterioration factor of the second engine based on the one or more operating parameters of the second engine, wherein the second engine is configured to supply mechanical power to a second propulsor or a second generator, different from the first propulsor or the first generator;
• adjust, based on the deterioration factor of the first engine, a first amount of mechanical power being provided by the first engine to extend a service time of the first engine;
• and
• adjust, based on the deterioration factor of the second engine, a second amount of mechanical power being provided by the second engine to at least partially compensate for the adjustment to the first amount of mechanical power.