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WithThe requirements for a feasibility demonstration program are presented. Navigation sensor error versus total system error selection is discussed. The Automatic Landing System (ALS) is described, with its objective to demonstrate augmented differential GPS with kinematic carrier-phase tracking (KCPT) technology, and its ability to meet Category (CAT) IIIb autoland requirements for navigation sensor error (NSE) and integrity. Key features of the ALS are presented and discussed. Significant system strengths include the KCPT fast ambiguity resolution method, carrier-phase tracking accuracies, and the integrity monitoring and probabilities of missed detection made possible by these accuracies. The flight test description and results of the series of 100 precision completed approaches and landings are presented. Analysis of the approaches from the final approach fix through touchdown is included.

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