NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Subsonic stability and control flight test results of the Space Shuttle /tail cone off/The subsonic stability and control testing of the Space Shuttle Orbiter in its two test flights in the tailcone-off configuration is discussed, and test results are presented. Flight test maneuvers were designed to maximize the quality and quantity of stability and control data in the minimal time allotted using the Space Shuttle Functional Simulator and the Modified Maximum Likelihood Estimator (MMLE) programs, and coefficients were determined from standard sensor data sets using the MMLE, despite problems encountered in timing due to the different measurement systems used. Results are included for lateral directional and longitudinal maneuvers as well as the Space Shuttle aerodynamic data base obtained using the results of wind tunnel tests. The flight test data are found to permit greater confidence in the data base since the differences found are well within control system capability. It is suggested that the areas of major differences, including lateral directional data with open speedbrake, roll due to rudder and normal force due to elevon, be investigated in any further subsonic flight testing. Improvements in sensor data and data handling techniques for future orbital test flights are indicated.
Document ID
19800061727
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Cooke, D. R.
(NASA Johnson Space Center Houston, Tex., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 80-1604
Meeting Information
Meeting: Atmospheric Flight Mechanics Conference
Location: Danvers, MA
Start Date: August 11, 1980
End Date: August 13, 1980
Accession Number
80A45897
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available