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Computer program for post-flight analysis of rigid body moments acting on a launch vehicle first stageA FORTRAN coded computer program and method for evaluation of the rigid body disturbing moments for a launch vehicle first stage based on post-flight measurements is described. The technique is a straightforward deterministic approach. Residual moments are computed to satisfy the equations of motion. Residuals are expressed in terms of altered vehicle characteristics; the aerodynamic coefficients, thrust misalignment, and control effectiveness. This method was used on the Scout launch vehicle and uncovered several significant differences between flight data and wind tunnel data. The computer program is written in FORTRAN IV for a CDC CYBER 173 computer system.
Document ID
19860004449
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Knauber, R. N. (Vought Corp. Dallas, TX, United States)
Date Acquired
September 5, 2013
Publication Date
November 1, 1982
Subject Category
Computer Programming And Software
Report/Patent Number
NAS 1.26:166033
NASA-CR-166033
Accession Number
86N13918
Funding Number(s)
CONTRACT_GRANT: NAS1-15000
PROJECT: RTOP 490-02-02-77
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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