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Discussion of Approaches to Estimate the Aircraft Stopping Distances Under Standard Operating Procedures. Technical note.
| 题名： | Discussion of Approaches to Estimate the Aircraft Stopping Distances Under Standard Operating Procedures. Technical note. |
| 作者： | Cheng-A. |
| 关键词： | *Aircraft-operations; *Terminal-areas; *Landing-performances; *Landing-distances.;Standard-operating-procedures; Stopping-distances. |
| 摘要： | The Federal Aviation Administration is currently engaged in research of aircraft operational landing performance, aiming to increase the safety and efficiency of aircraft operations in terminal areas. One of the primary research objectives was to identify the operational landing distances achieved in line operations under standard operating procedures. The landing distance is defined as the total distance, from the runway threshold, needed for an aircraft to make a full stop during a landing operation. This distance consists of two components: the touchdown point (i.e., airborne distance) from runway threshold and the stopping distance after touchdown. Although several algorithms have been recently developed to identify aircraft touchdown points via available landing parameters, solutions to adequately determine the aircraft stopping distance are still greatly sought after. This technical note addresses the difficulties of estimating the operational aircraft stopping distance and discusses approaches to resolve the problem. In particular, a new method is proposed to estimate the aircraft stopping distance via studying the deceleration pattern during rollout. The deceleration pattern provides a useful means to estimate the operational stopping distance since it is the realization of a pilots decision and command under the specific landing conditions, including the piloting techniques, weather conditions, runway situation, air traffic control demands, etc. There are several advantages to this approach. First, the deceleration pattern identified by ground speed information contains relatively little contamination of measurement noise so that a troublesome noise-filtering process is generally not required. Second, this approach is simple and straightforward because it does not depend on the availability of additional information regarding external factors that affect the deceleration performances. Assumptions and investigation results are demonstrated with operational landing examples. |
| 报告类型： | 科技报告 |
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