CF6-6D engine performance deterioration

Cruise cockpit recordings and test cell performance data in conjunction with hardware inspection data from airline overhaul shops were analyzed to define the extent and magnitude of performance deterioration of the General Electric CF6-6D model engine. These studies successfully isolated short-term deterioration from the longer term, and defined areas where a significant reduction in aircraft energy requirements for the 1980's can be realized. Unrestored losses which remain after engine refurbishment represent over 70% of the loss at engine shop visit. Sixty-three percent of the unrestored losses are cost-effective to restore which could reduce fuel consumed by CF6-6D engines in 1980 by 10.9 million gallons

Aerospace Medicine and Biology: A continuing bibliography with indexes, supplement 257

This bibliography lists 331 reports, articles and other documents introduced into the NASA scientific and technical information system in March 1984

Aerospace medicine and biology: A continuing bibliography with indexes (supplement 323)

This bibliography lists 125 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during April, 1989. Subject coverage includes; aerospace medicine and psychology, life support systems and controlled environments, safety equipment exobiology and extraterrestrial life, and flight crew behavior and performance

Aviation Archaeology: History, Theory, Practice and Direction

Aviation archaeology as a field of study has struggled with competing academic, professional, and public definitions and priorities since its establishment. In some ways, this sub-discipline of historical or underwater archaeology mirrors the development of nautical archaeology. Like nautical archaeologists who overcame the barrier of the oceans and pioneered methodology to suit, the proponents of aviation archaeology have also used the discipline to overcome a barrier of historical perception and tradition. The practice of aviation archaeology, however, has been characterized by opposing viewpoints and stakeholders often exhibit a non-collaborative attitude towards other groups and sometimes their own colleagues. These stakeholder groups are each focused on their own priorities, be they theory, methodology, conservation, exhibition, or re-use, and each group is arguably attempting to shape the future of aviation archaeology through their projects or publications. This dissertation is a critical evaluation of the current state of aviation archaeology, including its history, stakeholders, literature, and defining projects. This leads to the identification of a series of best practices in aviation archaeology and a theory of interpretation and display of recovered aircraft

Aerospace medicine and biology: A continuing bibliography with indexes (supplement 325)

This bibliography lists 192 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during June, 1989. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance