Dynamic Pressure vs Impact Pressure
The dynamic pressure and the impact pressure are the same at low speed, and equal to . However, at higher speeds, the air density around the airplane is affected by compressibility, and the term is called the impact pressure. The dynamic pressure is always equal to
(1)
Dynamic Pressure
(2)
Impact Pressure
(3)
Indicated Impact Pressure
(4)
Pressure Coefficient
(5)
(6)