Free-flight Investigation of the Deployment of a Parawing Recovery Device for a Radio-controlled 1/5-scale Dynamic Model Spacecraft PDF Download
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Author: Charles E. Libby Publisher: ISBN: Category : Parachutes Languages : en Pages : 30
Book Description
A free-flight investigation of a redio-controlled model of a manned reentry spacecraft with a telescoping rigid parawing as a recovery system was made to evaluate the deployment process and the stability and control characteristics of the configuration. Flight tests showed that the parawing could be deployed from a packaged condition, but that the deployment process must be a sequence of carefully controlled and timed events, and that some portions of the deployment should not occur at too fast a rate. The most significant single factor learned about the deployment process was that the parawing had to be slowly rotated to a lifting condition. Transition which is too fast from zero lift to maximum lift would result in a tumbling motion. After the parawing was deployed, the configuration was stable and controllable.
Author: Charles E. Libby Publisher: ISBN: Category : Parachutes Languages : en Pages : 30
Book Description
A free-flight investigation of a redio-controlled model of a manned reentry spacecraft with a telescoping rigid parawing as a recovery system was made to evaluate the deployment process and the stability and control characteristics of the configuration. Flight tests showed that the parawing could be deployed from a packaged condition, but that the deployment process must be a sequence of carefully controlled and timed events, and that some portions of the deployment should not occur at too fast a rate. The most significant single factor learned about the deployment process was that the parawing had to be slowly rotated to a lifting condition. Transition which is too fast from zero lift to maximum lift would result in a tumbling motion. After the parawing was deployed, the configuration was stable and controllable.
Author: Joseph Chambers Publisher: Joseph Chambers ISBN: 0160846331 Category : Business & Economics Languages : en Pages : 202
Book Description
state of the art in aeronautical engineering has been continually accelerated by the development of advanced analysis and design tools. Used in the early design stages for aircraft and spacecraft, these methods have provided a fundamental understanding of physical phenomena and enabled designers to predict and analyze critical characteristics of new vehicles, including the capability to control or modify unsatisfactory behavior. For example, the relatively recent emergence and routine use of extremely power- ful digital computer hardware and software has had a major impact on design capabilities and procedures. Sophisticated new airflow measurement and visualization systems permit the analyst to conduct micro- and macro-studies of properties within flow fields on and off the surfaces of models in advanced wind tunnels. Trade studies of the most efficient geometrical shapes for aircraft can be conducted with blazing speed within a broad scope of integrated technical disciplines, and the use of sophisticated piloted simulators in the vehicle development process permits the most important segment of operations—the human pilot—to make early assessments of the acceptability of the vehicle for its intended mission. Knowledgeable applica- tions of these tools of the trade dramatically reduce risk and redesign, and increase the marketability and safety of new aerospace vehicles.
Author: Sanger M. Burk Publisher: ISBN: Category : Pilot ejection seats Languages : en Pages : 44
Book Description
A wind-tunnel investigation has been conducted in the Langley full-scale tunnel to determine the static longitudinal and l a t e r a l characteristics of a model of an ejection seat equipped with a rigid-wing recovery system. Several wing and vertical-tail arrangements were tested as well as various configurations of the ejection seat alone, ranging from unfaired to completely faired s e a t s .
Author: Charles E. Libby
Author: Charles E. Libby
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Author: Joseph Chambers
Author: Sanger M. Burk
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