> I'm not even sure radio altimeters are even used on many aircraft anymore. What misled you to think this? Radio altimeters are used throughout the aviation i

> I'm not even sure radio altimeters are even used on many aircraft anymore. What misled you to think this? Radio altimeters are used throughout the aviation industry. Their ubiquity and criticality is the issue at hand. [0] [0] https://www.faa.gov/other_visit/aviation_industry/airline_operators/airline_safety/safo/all_safos/media/2021/SAFO21007.pdf https://www.faa.gov/other_visit/aviation_industry/airline_op...