ubersonic

Ubersonic is the name given to the highest mach regime in the nomenclature of velocities relating to the speed of sound. It is defined as a speed at or exceeding mach 25. It is also referred to as "Re-entry speeds" but this sounds fucking stupid and no one should call it this. As of 2021 I am unaware of any ubersonic aircrafts in existence, manned or unmanned. All that come close are either HGVs or missiles. In the future an additional category may be needed under the name high-ubersonic for speeds exceeding mach 100, but for now this is useless.

Subsonic - Under mach 0.8 (less than the speed of sound)
Transonic - Mach 0.8–1.2 (around the speed of sound)
Supersonic - Mach 1.2–5.0 (above the speed of sound)
Hypersonic - Mach 5-10 (well above the speed of sound)
High-Hypersonic - Mach 10-25 (holy fucking shit thats fast)
Ubersonic - Mach 25+ (about as fast as I cum)