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Comparison of three thrust calculation methods using in-flight thrust data (1981)

Hughes, D. L.

In: CASI

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Publication Date: 2019-06-28

Description: The gross thrust of an experimental airplane was determined by each method using the same flight maneuvers and generally the same data parameters. Coefficients determined from thrust stand calibrations for each of the three methods were then extrapolated to cruise flight conditions. The values of total aircraft gross thrust calculated by the three methods for cruise flight conditions agreed within + or - 3 percent. The disagreement in the values of thrust calculated by the different techniques manifested itself as a bias in the data. There was little scatter (0.5 percent) for the thrust levels examined in flight.

Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE

Type: NASA-TM-81360 , H-1141

Format: application/pdf

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