* https://www.npr.org/sections/thetwo-way/2017/06/20/533662790...
* https://www.azfamily.com/2023/07/20/how-extreme-heat-can-imp...
Air is no longer dense enough:
* https://en.wikipedia.org/wiki/Density_altitude
* https://skybrary.aero/articles/density-altitude
* PDF: https://www.faasafety.gov/files/events/NM/NM07/2023/NM071202...