What is max q?

Max Q (Maximum Dynamic Pressure) is a term used in the field of aerospace engineering that refers to the period in a rocket or spacecraft's ascent where the vehicle experiences the highest amount of aerodynamic stress due to the combination of high speed and dense atmosphere. This is typically around Mach 1 or 2, depending on the altitude of the vehicle, and can cause structural damage to the vehicle if not properly designed and tested. The successful management of Max Q is critical to the safety and success of a rocket or spacecraft launch.