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Economic effects of propulsion system technology on existing and future transport aircraftThe results of an airline study of the economic effects of propulsion system technology on current and future transport aircraft are presented. This report represents the results of a detailed study of propulsion system operating economics. The study has four major parts: (1) a detailed analysis of current propulsion system maintenance with respect to the material and labor costs encountered versus years in service and the design characteristics of the major elements of the propulsion system of the B707, b727, and B747. (2) an analysis of the economic impact of a future representative 1979 propulsion system is presented with emphasis on depreciation of investment, fuel costs and maintenance costs developed on the basis of the analysis of the historical trends observed. (3) recommendations concerning improved methods of forecasting the maintenance cost of future propulsion systems are presented. A detailed method based on the summation of the projected labor and material repair costs for each major engine module and its installation along with a shorter form suitable for quick, less detailed analysis are presented, and (4) recommendations concerning areas where additional technology is needed to improve the economics of future commercial propulsion systems are presented along with the suggested economic benefits available from such advanced technology efforts.
Document ID
19740020117
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Sallee, G. P. (American Airlines, Inc. New York, NY, United States)
Date Acquired
September 3, 2013
Publication Date
July 1, 1974
Subject Category
Propulsion Systems
Report/Patent Number
NASA-CR-134645
Accession Number
74N28230
Funding Number(s)
CONTRACT_GRANT: NAS3-17326
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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