Cost estimation is a wide open area within the Department of Defence and accurate cost estimating models are a valuable toll in the life cycle costing of a weapon system. This research effort utilized multiple linear regression analysis to develop parametric cost models or cost estimating relationships (CERs) for jet engine depot overhaul costs. Both engine operating parameters, e.g., turbine inlet temperature, RPM, etc., and engine physical characteristics, e.g., length, weight ect., were considered as propable cost drives. Extensive analysis was performed to determine the realibility of the data base. The major finding of this study was that models can be developed with acceptable explanatory power, with respect to variation in the data base, using data of questionable reliability. Thus, a model developed should not be accepted on the basis of explanatory power alone but should be tested further to determine its utility as a cost estimator. (Se)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Development of cost estimating relationship for aircraft jet core-engine overhaul costs


    Additional title:

    Schaetzung der Kostenrealtionen bei der Ueberholung von Strahltriebwerken


    Contributors:

    Published in:

    Publication date :

    1977


    Size :

    160 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




    Engine overhaul costs

    Romeril, J.G. | Engineering Index Backfile | 1963



    Various Applications of Robots in Aircraft Engine Overhaul

    Sasahara, O. / AIAA | British Library Conference Proceedings | 1993


    Mass production methods applied to aircraft engine overhaul

    Whitmer, A.M. | Engineering Index Backfile | 1946


    Engine-overhaul procedure

    Foster, M.C. | Engineering Index Backfile | 1929