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Additional recommended knowledge
In aerospace engineering, max Q is the point of maximum dynamic pressure, the point at which aerodynamic stress on a spacecraft in atmospheric flight is maximized.
Considering the definition of dynamic pressure: q = ρv2 / 2, we have that such quantity:
Therefore, there will necessarily be a point where the dynamic pressure is maximum: that point is precisely max Q.
In other words, below the max Q point, the effect of the spacecraft acceleration overcomes the decrease in density. Above the max Q point, the opposite is true.
During a normal Space Shuttle launch, for example, max Q is at an altitude of around 11 km (35,000 ft). During a typical Apollo mission, max Q occurred approximately between 13 km and 14 km of altitude (43,000–46,000 ft).
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Max_Q". A list of authors is available in Wikipedia.|