Experts assessed the aircraft's controllability at a speed of 1163 kilometers per hour with the stability augmentation system turned off. The XB-1 met this requirement, confirming that the pilot can safely control the aircraft at high speeds even in the unlikely event of a stability augmentation system failure.
The XB-1 is confidently progressing towards achieving supersonic speed. The company's plans indicate that this is expected to occur during testing in early 2025.