There is a phenomenon known as the transonic drag rise ... factors including altitude, speed, and atmospheric conditions. "XB-1's first sonic boom at Mach 1.1 probably won't reach the ground.

Before manned spaceflight, the Douglas D-558-2 Skyrocket was pushing boundaries at the edge of the atmosphere. In 1953, ...

explored transonic and low supersonic speeds. On October 14, 1947, the X-1 reached Mach 1.06, the first aircraft to exceed the speed of sound in controlled level flight. Number built: 3.

Up to now the best results have been obtained with PSP in transonic speed ranges because of the high absolute pressure ... making several measurements for different angles-of-attack and Mach numbers.

Going forward, the XB-1 will operate at transonic speeds ... was getting closer to breaking the speed barrier step by step.

In the department of High Speed Configurations, we investigate the aerodynamics of aircraft and missiles at transonic, supersonic and hypersonic ... for supersonic and hypersonic flows up to Mach 7.