https://en.wikipedia.org/wiki/Precision_approach_path_indicator
Flight Sim: MSFS 2020 et Xplane-12
https://digital.emagazines.com/plane_and_pilot/20230624/RZWBYX2BUCQ5BUMFETNTLTW6TY.pdf https://digital.emagazines.com/plane_and_pilot/20230624/index.html?#p34…