Comparison of PAPI, VASI, and OLS meatball and datum lights... PAPI - Precision Approach Path indicator. A precision approach path indicator (PAPI) is a visual aid that provides guidance information to help
Alejandro Gabriel Giordano on LinkedIn: The PAPI (Precision Approach Path Indicator) and VASI (Visual Approach… | 17 comments
![Aerospace | Free Full-Text | The PAPI Lights-Based Vision System for Aircraft Automatic Control during Approach and Landing Aerospace | Free Full-Text | The PAPI Lights-Based Vision System for Aircraft Automatic Control during Approach and Landing](https://www.mdpi.com/aerospace/aerospace-09-00285/article_deploy/html/images/aerospace-09-00285-g001.png)