Space Shuttle Orbiter Static Stability and Control Derivatives Obtained from Wind-Tunnel and Flight Tests

1982 ◽  
Vol 19 (1) ◽  
pp. 12-13 ◽  
Author(s):  
Delma C. Freeman
Keyword(s):  
Wind Tunnel ◽  
Space Shuttle ◽  
Static Stability ◽  
Flight Tests ◽  
Stability And Control ◽  
Control Derivatives ◽  
And Control

An Interactive Multimedia Computer Program on Aircraft Stability and Control

1997 ◽  
Vol 25 (3) ◽  
pp. 231-239
Author(s):  
A. W. Bloy ◽  
J. T. Turner ◽  
A. Rizzi
Keyword(s):  
Wind Tunnel ◽  
Computer Program ◽  
Undergraduate Students ◽  
Interactive Multimedia ◽  
Static Stability ◽  
Ease Of Use ◽  
Stability And Control ◽  
And Control ◽  
Aircraft Stability And Control ◽  
Longitudinal Static Stability

A pilot interactive multimedia computer program on aircraft longitudinal static stability and trim is described. The module simulates typical features of an undergraduate course and has been evaluated by third-year undergraduate students familiar with the topic. In general, favourable comments have been made, particularly concerning the ease of use, overall presentation, level of interactivity and the simulation of a wind-tunnel experiment. Applications of the program are suggested.

Space Shuttle stability and control derivatives estimated from the first entry

1983 ◽  
Vol 6 (4) ◽  
pp. 264-271 ◽  
Author(s):  
Kenneth W. Iliff ◽  
Richard E. Maine ◽  
Douglas R. Cooke
Keyword(s):  
Space Shuttle ◽  
Stability And Control ◽  
Control Derivatives ◽  
And Control

Rotorcraft Lateral-Directional Oscillations: The Anatomy of a Nuisance Mode

2021 ◽  
Author(s):  
Dheeraj Agarwal ◽  
Linghai Lu ◽  
Gareth D. Padfield ◽  
Mark D. White ◽  
Neil Cameron
Keyword(s):  
Simulation Model ◽  
Simulation Models ◽  
Flight Test ◽  
Flight Simulation ◽  
Stability And Control ◽  
Systems Research ◽  
Control Derivatives ◽  
Research Aircraft ◽  
Level Of Understanding ◽  
And Control

High-fidelity rotorcraft flight simulation relies on the availability of a quality flight model that further demands a good level of understanding of the complexities arising from aerodynamic couplings and interference effects. One such example is the difficulty in the prediction of the characteristics of the rotorcraft lateral-directional oscillation (LDO) mode in simulation. Achieving an acceptable level of the damping of this mode is a design challenge requiring simulation models with sufficient fidelity that reveal sources of destabilizing effects. This paper is focused on using System Identification to highlight such fidelity issues using Liverpool's FLIGHTLAB Bell 412 simulation model and in-flight LDO measurements from the bare airframe National Research Council's (Canada) Advanced Systems Research Aircraft. The simulation model was renovated to improve the fidelity of the model. The results show a close match between the identified models and flight test for the LDO mode frequency and damping. Comparison of identified stability and control derivatives with those predicted by the simulation model highlight areas of good and poor fidelity.

Some Stability and Control Aspects of Airframe/Propulsion System Interactions on the YF-12 Airplane

1974 ◽  
Vol 96 (3) ◽  
pp. 820-826 ◽  
Author(s):  
D. T. Berry ◽  
G. B. Gilyard
Keyword(s):  
Static Stability ◽  
Propulsion System ◽  
Jet Propulsion ◽  
Stability And Control ◽  
The Stability ◽  
And Control ◽  
Large Aircraft

Airframe/propulsion system interactions can strongly affect the stability and control of supersonic cruise aircraft. These interactions generate forces and moments similar in magnitude to those produced by the aerodynamic controls, and can cause significant changes in vehicle damping and static stability. This in turn can lead to large aircraft excursions or high pilot workload, or both. For optimum integration of an airframe and its jet propulsion system, these phenomena may have to be taken into account.

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