Breaking the Sound Barrier

The history of the people and the planes that first broke the speed barrier in 1947 and the impact it has had on aviation and how we fly today. The history of the people and the planes that first broke the speed barrier in 1947 and the impact it has had on aviation and how we fly today. The history of the people and the planes that first broke the speed barrier in 1947 and the impact it has had on aviation and how we fly today. The history of the people and the planes that first broke the speed barrier in 1947 and the impact it has had on aviation and how we fly today.