1. A method of determining a maneuver performed by an aircraft having sensors for monitoring motion data, the method comprising: periodically sampling the sensors to electronically determine segments of motion data of the aircraft; aggregating sequences of the segments of the motion data; comparing the aggregated segments of motion data to models of particular maneuvers; and determining the maneuver performed by the aircraft; wherein the segments of motion data are generated by a health and usage monitoring system (HUMS); wherein the segments of motion data generated by the HUMS are HUMS regime sequences; wherein aggregating sequences of the segments of the motion data includes using a clustering algorithm to aggregate the HUMS regime sequences into a cluster.