Development of a real-time aeroperformance analysis technique for the X-29A advanced technology demonstratorThe X-29A advanced technology demonstrator has shown the practicality and advantages of the capability to compute and display, in real time, aeroperformance flight results. This capability includes the calculation of the in flight measured drag polar, lift curve, and aircraft specific excess power. From these elements, many other types of aeroperformance measurements can be computed and analyzed. The technique can be used to give an immediate postmaneuver assessment of data quality and maneuver technique, thus increasing the productivity of a flight program. A key element of this new method was the concurrent development of a real-time in flight net thrust algorithm, based on the simplified gross thrust method. This net thrust algorithm allows for the direct calculation of total aircraft drag.
Document ID
19880051511
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ray, R. J. (NASA Flight Research Center Edwards, CA, United States)
Hicks, J. W. (NASA Flight Research Center Edwards, CA, United States)
Alexander, R. I. (Computing Devices Co. Ottawa, Canada)