Abstract: A micro-electro-mechanical system (MEMS) device includes a substrate having a cavity and a MEMS structure disposed over the cavity and attached to the substrate. The MEMS structure includes at least one first piezoelectric layer having a first piezoelectric coefficient and two second piezoelectric layers respectively disposed under and above the first piezoelectric layer, where each second piezoelectric layer has a second piezoelectric coefficient higher than the first piezoelectric coefficient. The MEMS structure further includes a first electrode layer and a second electrode layer sandwiching the two second piezoelectric layers.

Abstract: A system and method combines integrated system health usage monitoring and flight tracking of a helicopter, and transmits the information to monitoring sites for managing flight operations in real time, thereby providing the functionality of both system health and flight tracking and reducing weight related constraints faced by helicopters. With enhanced availability of system health data, vital information for maintenance and flight position data-stream, operations, flight dispatch and maintenance can plan for required services more efficiently.

Abstract: A system and method combines integrated system health usage monitoring and flight tracking of a helicopter, and transmits the information to monitoring sites for managing flight operations in real time, thereby providing the functionality of both system health and flight tracking and reducing weight related constraints faced by helicopters. With enhanced availability of system health data, vital information for maintenance and flight position data-stream, operations, flight dispatch and maintenance can plan for required services more efficiently.

Abstract: A system and method are provided for advising a pilot if it is safe to continue an approach to landing in adverse weather conditions. The system considers flight parameters from the flight management system, stored runway situational parameters, and weather information. The weather information may include, for example, reports, forecasts, and data collected in real time. The advice may be display as one of a plurality of recommendations based on a comparison of the weather information to a threshold.

Abstract: An aircraft is provided. The aircraft may include, but is not limited to, an accelerometer configured to measure a deceleration experienced by the aircraft and a processor coupled to the accelerometer. The processor may be configured to determine if the aircraft experienced a hard landing if the deceleration experienced by the aircraft was greater than a predetermined threshold, and generate a maintenance advisory if the aircraft experienced a hard landing.

Abstract: An aircraft is provided. The aircraft may include, but is not limited to, an accelerometer configured to measure a deceleration experienced by the aircraft and a processor coupled to the accelerometer. The processor may be configured to determine if the aircraft experienced a hard landing if the deceleration experienced by the aircraft was greater than a predetermined threshold, and generate a maintenance advisory if the aircraft experienced a hard landing.