Analysis of Aircraft Touchdown Point and the Associated Uncertainity
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Publication Date: |
01-2008 |
| Authors: |
Andrew Cheng, PhD. Hackler, H. Ouyand, M. |
Ouyang, M., Hackler, H. & Cheng, A.Y. (2008) Analysis of Aircraft Touchdown Point and the Associated Uncertainty, DOT/FAA/AR-07/67, Air Traffic Organization Operations Planning Office of Aviation Research and Development Washington, DC
Abstract
Adequate determination of aircraft landing distance is critical to the safety of terminal area operations. In general, the aircraft landing process consists of the touchdown and rollout/turnoff. Although the current aviation system tracks a number of landing parameters for commercial operations, the operational touchdown performance is not readily measured and recorded. The research described herein collected landing traces from a flight simulator, analyzed the traces, and developed and validated computational methods that can backcalculate the touchdown points. The accuracy of the calculation was verified against highprecision Global Positioning System information. These computational methods are implemented in the MATLAB® script language, and they are very efficient. MATLAB provides interfaces to all commonly used database systems, including Microsoft® Access®. Thus, these methods can be readily incorporated in an integral system to process large amounts of operational landing data.
