I hope I'm on the right forum - apologies if not. I can only plead newbie ignorance.
My question is - Can anyone help me with sound barrier information please? My father was stationed at RAF St. Athan from 1947 to June 1950, and I remember being taken to an airshow on the base at which the sound barrier was broken. The event cannot have been after June 1950, because that's when we moved to RAF Castle Archdale. Does anyone know which aircraft and pilot this might have been?