Velocity pressure is also called fluid dynamic pressure or Q given by the equation. This gives rise to the concept of Max Q, which is commonly associated with the point at which the Space Shuttle experiences its maximum load during liftoff and is mentioned in radio communications during launch. A visible shock wave formed as the Apollo 11 Saturn V encountered Maximum Dynamic Pressure (Max Q) at about 1 minute 20 seconds into the flight (altitude 12. ... NASAs Space Shuttle, officially called Space Transportation System (STS), is the United States governments current manned launch vehicle. ...

By applying the ideal gas law: Isotherms of an ideal gas The ideal gas law is the equation of state of an ideal gas. ...

p = ρRT

the definition of Mach number: An F/A-18 Hornet breaking the sound barrier. ...

or

and the definition of speed of sound: The speed of sound is a term used to describe the speed of sound waves passing through an elastic medium. ...

Dynamic pressure can be rewritten as:

This form is useful for the analysis of aircraft.

ρ = Density

q = Dynamic pressure

V = Velocity

p = Freestream pressure

Ma = Mach number

a = Speed of sound

k = a Gas constant, which is 1.4 for air

R = a Gas constant, which is 1716(US) or 286(metric) for air

A fluids dynamic pressure results from the fluids kinetic energy. A fluids total pressure is the sum of the fluids dynamic pressure and the fluids static pressure. Density, or volumic mass (ISO 31), is a measure of mass per volume. ... The velocity of an object is simply its speed in a particular direction. ... An F/A-18 Hornet breaking the sound barrier. ... The speed of sound is a term used to describe the speed of sound waves passing through an elastic medium. ...

Velocity pressure + Static pressure + pressure altitude = Total pressure Static pressure is a term used in ventilation engineering, airspeed indication, fluid statics, hydraulics and flow measurement. ... In aviation, pressure altitude is the indicated altitude when an altimeter is set to 1013 hPa (29. ...