My milk is turning 4 years old today!

XF-84H Thunderscreech my beloved disaster

for those unaware, this plane was an experimental supersonic propeller fighter plane, and the result of making a propeller provide supersonic levels of thrust resulted in noise so loud it made ground crews ill and reportedly generated near-constant shockwaves that caused at least one ground crew member to have a seizure, AND THE NOISE ISN’T EVEN THE ONLY PROBLEM THE PLANE HAD

https://en.m.wikipedia.org/wiki/Republic_XF-84H_Thunderscreech