| タイトル | Guidance and dispersion studies of National Launch System ascent trajectories |
| 著者（英） | Chang, Hopen; Hanson, John M.; Freeman, Scott E.; Shrader, M. W. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1992-01-01 |
| 言語 | eng |
| 内容記述 | The National Launch System (NLS) is a joint concept, between DoD and NASA, for building a family of new launch vehicles. Two of the many choices to be made are the trajectory shaping methods and the onboard guidance scheme. This paper presents results from some ongoing studies to address these issues. First, potential gains from new guidance concepts are listed. Next the paper gives a list of possible discriminators between different guidance schemes, lists a number of potential guidance schemes, and explains two in some detail. A reference scheme is tested to determine its performance versus the discriminators. Finally, results from some special studies using the reference guidance scheme are given, including the effects of closed-loop guidance initiation time, time of enforcement of sideslip, vehicle roll for engine out, time and location of an engine out, use of load relief control, and use of day of launch wind biasing. |
| NASA分類 | LAUNCH VEHICLES AND SPACE VEHICLES |
| レポートNO | 92A55154
AIAA PAPER 92-4306 |
| 権利 | Copyright |
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