The purpose of this page it to demonstrate some of the material that Dot Net Webs Limited has been involved with in previous projects. This HTML on this page has not been updated to reflect modern standards. Its purpose is simply to show the animations in their original context. For more information about Dot Net Webs Limited please visit our Home Page.

The statement made on the previous page was that pitot pressure is the sum of the dynamic pressure and the static pressure.

This can be expressed as:

Pitot Pressure = Dynamic Pressure + Static Pressure

In practice this means that when the aircraft is stationary it will be sensing static pressure only. When the aircraft is flying (or on its takeoff or landing roll) it will be sensing dynamic pressure and static pressure. The significance of this will become apparent later in this module when we discuss the Airspeed Indicator.

On the Static Pressure Page we stated that since air is a fluid, static pressure is applied equally to all points of the object experiencing the force.

This is not the case with pitot pressure. It is greatest in the direction opposite to that in which the aircraft is traveling.

The simple animation below demonstrates how dynamic and static pressures combine to give pitot pressure. It begins with an aircraft that has no forward motion.

Click on the aircraft to start it moving

The next subject will examine the methods used to sense the parameters we have discussed so far.

Continue to:
Air Data Parameters - Revision

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