XB-1 supersonic plane breaks the sound barrier: how did they handle to keep away from a devastating sonic growth?

XB-1 supersonic plane breaks the sound barrier: how did they handle to keep away from a devastating sonic growth?

The Growth Supersonic XB-1 experimental airplane has efficiently accomplished a supersonic flight at Mach 1.1 with out a sonic growth. The corporate used the Mach cutoff phenomenon at an altitude of greater than 10 km.