[Winniesboy]

The Brits believe that they first broke the sound barrier and that the movie "Breaking the Sound Barrier" is a true story.

They don't. Aviation histories from reputable British authors have always correctly credited the X-1. However, they also point out that many of the X-1's design features were anticipated in the remarkably similar-looking wartime Miles M 52, which was unfortunately cancelled without progressing beyond a 1/3 scale model- but not before the design data had been shared with Bell under a UK/US agreement.

[Stentor]

However, they also point out that many of the X-1's design features were anticipated in the remarkably similar-looking wartime Miles M 52, which was unfortunately cancelled without progressing beyond a 1/3 scale model-

All they needed was a 1/3rd scale Chuck Yeager to fly it.

[Moonman62]

They don’t. Aviation histories from reputable British authors have always correctly credited the X-1. However, they also point out that many of the X-1’s design features were anticipated in the remarkably similar-looking wartime Miles M 52, which was unfortunately cancelled without progressing beyond a 1/3 scale model- but not before the design data had been shared with Bell under a UK/US agreement.

...

IIRC, the main design inspiration for the X-1 was a bullet.