The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Propulsion System Flow Stability Program (Dynamic). Part XX. Computer Programs for the Root Locus Analysis of Linearized Turbojet and Turbofan Control Systems

Report Number: AFAPL TR 68-142 Part XX
Author: Lum, Evan L.
Corporate Author: North American Rockwell Corp Los Angeles CA Los Angeles Div
Laboratory: Air Force Aero Propulsion Laboratory
Date of Publication: 1968-12
Pages: 95
Contract: F33615-67-C-1848
AD Number: AD0853262

This part describes computer programs developed to handle the computational tasks for the linear stability analysis of propulsion controls by root locus techniques. The descriptions, flowcharts, and Fortran program listings of two main programs TJET and TFAN developed for the analysis of turbojet and turbofan engine control systems are presented. Also presented are the descriptions of three subroutines specially developed to facilitate data handling for this study. Examples are given to illustrate the application of computer programs TJET and TFAN. TJET and TFAN have been valuable in the linear analysis of the propulsion system, However, it is recommended that these computer programs be expanded to include the capability of analyzing coupled control loops and to include a limited transient analysis.

Lockheed Martin Missiles & Fire Control
Download this report

(PDF, 4.82 MB, 95 pages)

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
The NTIS Order Number for this report is: AD853262
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement

Related Reports

This report has the following parts/volumes: