The article clarifies aviation terminology, distinguishing a PAPI (Precision Approach Path Indicator) from a VASI (Visual Approach Slope Indicator) and noting PAPI offers more precise guidance. "Taxi ...
Visual Approach Slope Indicator (VASI) and Precision Approach Path Indicator (PAPI) are light systems on runway thresholds that provide visual descent guidance, offering safe obstruction clearance ...
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