Critical Mach number and slow down as it travels around the aircraft's structure. When the aircraft's airspeed reaches the critical Mach number, the speed of the airflow in some areas near the airframe reaches the speed of sound, even though the aircraft itself has an airspeed lower than Mach 1.0. This creates a weak shock wave. As the aircraft exceeds the critical Mach number, its drag coefficient increases suddenly, causing dramatically increased drag, and, in an aircraft not designed for transonic or supersonic speeds, changes to the airflow over the flight control surfaces lead to deterioration in control of the aircraft. In aircraft
Mach 2 (film) Mach 2 (film) Mach 2 is a 2001 American direct-to-video action disaster thriller film directed by Fred Olen Ray. It was the first film to feature the airliner Concorde being hijacked. U.S. Senator Stuart Davis, running against the Vice-President, plans a trip to the Balkans to negotiate the release of American servicemen being held hostage by terrorists. Before he leaves, he receives a disk documenting evidence that the Vice-President has been trying to revive the American economy by causing a war in the Balkans. He announces his plans at Washington Dulles International Airport to show it to both sides in