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Propulsion system mathematical model for a lift/cruise fan V/STOL aircraftA propulsion system mathematical model is documented that allows calculation of internal engine parameters during transient operation. A non-realtime digital computer simulation of the model is presented. It is used to investigate thrust response and modulation requirements as well as the impact of duty cycle on engine life and design criteria. Comparison of simulation results with steady-state cycle deck calculations showed good agreement. The model was developed for a specific 3-fan subsonic V/STOL aircraft application, but it can be adapted for use with any similar lift/cruise V/STOL configuration.
Document ID
19810007540
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Cole, G. L. (NASA Lewis Research Center Cleveland, OH, United States)
Sellers, J. F. (NASA Lewis Research Center Cleveland, OH, United States)
Tinling, B. E. (NASA Ames Research Center)
Date Acquired
September 4, 2013
Publication Date
December 1, 1980
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA-TM-81663
E-681
Accession Number
81N16055
Funding Number(s)
PROJECT: RTOP 532-05-12
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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