The Tu-144 first broke the sound barrier on 5 June 1969, and on 15 July 1969 and became the first commercial transport to exceed Mach 2.
The Tu-144 mbụ mebiri ọsọ nke ụda on 5 June 1969, na on 15 July 1969 akabade edi akpa azụmahịa iga gafere Mach abụọ.