Methinks you don’t know what you are talking about. The FAA operates in feet. All domestic flights in the US are separated by flight levels specified in feet. If you get your pilots license in America, everything about it from runway length, controlled flight altitudes, wing spans, etc, will be in feet.
All US federal contracts are required by federal law to use metric. This is an issue of the media using stupid units for their audience
https://www.faa.gov/air_traffic/publications/atpubs/atc_html/chap4_section_5.html
Methinks you don’t know what you are talking about. The FAA operates in feet. All domestic flights in the US are separated by flight levels specified in feet. If you get your pilots license in America, everything about it from runway length, controlled flight altitudes, wing spans, etc, will be in feet.
For another example, just let me know how many metric units are used here: https://www.faa.gov/air_traffic/publications/atpubs/atc_html/chap3_section_10.html