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_files/imageTBJ.jpg "Visual Approach Slope Indicator (VASI)")
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![PDF] T-Visual Approach Slope Indicator System (T-VASIS) versus Precision Approach Path Indicator (PAPI) – the debate revisited | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/67e5354496bc3b2c795c5a5212fe679035fb4cae/2-Figure1-1.png "PDF] T-Visual Approach Slope Indicator System (T-VASIS) versus Precision Approach Path Indicator (PAPI) – the debate revisited | Semantic Scholar")
PDF] T-Visual Approach Slope Indicator System (T-VASIS) versus Precision Approach Path Indicator (PAPI) – the debate revisited | Semantic Scholar
