Jet Vapor Cone: Fission of FRQs CO2 clusters

"The vapour cones are created by a shockwave that is generated by the aircraft as it picks up speed. The shock waves are the physical effects of the aircraft travelling so fast through air. As the aircraft picks up speed, and approaches the speed of sound – around 767mph (1,234km/h) at sea level – shockwaves form around the aircraft. Across these shockwaves there is ‘discontinuity’ in the local air pressure and temperature. This causes the air to lose its capacity to hold water and condensation starts to form, creating the vapour cone. "

You think this is a sonic boom – but it’s not (https://www.bbc.com/future/article/20160216-you-think-this-is-a-sonic-boom-its-not)