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Dynamically certified seats (16g seats) are being fielded in all jet transports certified since 1988. In addition, the airlines are steadily replacing their older seats with 16g compatible seats in the older aircraft certified prior to that date. The implementation of the dynamic seat requirements has encountered one unanticipated problem. Under normal use, seat cushions must be replaced with iden ...

Dynamically certified seats (16g seats) are being fielded in all jet transports certified since 1988. In addition, the airlines are steadily replacing their older seats with 16g compatible seats in the older aircraft certified prior to that date. The implementation of the dynamic seat requirements has encountered one unanticipated problem. Under normal use, seat cushions must be replaced with iden ...

A novel design for an in situ atmospheric sensor for CO2 and trace gases is proposed. The sensor, named AirCore, provides the advantages of existing in situ sensors (e.g. high resolution) but eliminates possible biases in analysis that often originate from imperfect measurement condition. The AirCore provides a significant savings in cost and weight while increasing the capabilities of existing ...

An opportunity exists to combine the structural elements of advanced launch vehicles with their thermal protection system (TPS) to create an integrated system, free of parasitic stand-offs and supports. An attractive approach, based on the marriage of two exciting technologies: continuously-brazed aluminum matrix composites (AMCs) and thermally-insulating carbon foam, can result in a more weight e ...

The next generation of reusable launch vehicle and satellite structures require new materials to meet aggressive program objectives such as decreasing vehicle weight in order to increase payload, and reducing cost per launch in order to decrease cost per pound of payload. Materials which have improved specific strength and specific stiffness, especially at cryogenic and elevated temperatures, will ...

The next generation of reusable launch vehicle and satellite structures require new materials to meet aggressive program objectives such as decreasing vehicle weight in order to increase payload, and reducing cost per launch in order to decrease cost per pound of payload. Materials which have improved specific strength and specific stiffness, especially at cryogenic and elevated temperatures, will ...

NASA is interested in innovative manufacturing methods and materials that will significantly reduce the cost and weight of general aviation aircraft, while improving cabin comfort and crash-worthiness. Energy absorption, in the form of projectile impact and crash protection, and fire resistance are major safety benefits, and noise reduction is a serious comfort consideration. Several engineering m ...

NASA is interested in innovative manufacturing methods and materials that will significantly reduce the cost and weight of general aviation aircraft, while improving cabin comfort and crash-worthiness. Energy absorption, in the form of projectile impact and crash protection, and fire resistance are major safety benefits, and noise reduction is a serious comfort consideration. Several engineering m ...

This proposal addresses NASA's need for non-autoclave composites manufacture. The Constellation program, including the Ares V launch vehicle, will require very large-scale structures and conventional autoclave-based composites which are very costly and suffer from logistical problems. Out of autoclave (OOA) composite manufacturing technology has the potential to solve the constraint issues of aut ...