centre of pressure

British  

noun

1. physics the point in a body at which the resultant pressure acts when the body is immersed in a fluid

2. aeronautics the point at which the resultant aerodynamic forces intersect the chord line of the aerofoil

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Example Sentences

A, Commencement of pressure; B, centre of pressure; C, termination of pressure.

From Project Gutenberg

If the pressure on the lead is uniformly varying, the centre of pressure must be within the middle third of the width of the lead; that is, it cannot deviate from the centre of the voussoir joint by more than one-eighteenth of its depth.

From Project Gutenberg

III; and the centre of pressure of the braces must be directly over a bolster, to prevent crippling.

From Project Gutenberg

The rudder is supported from the struts 29 by means of the intermediate cross-piece 32, which is located near the centre of pressure slightly in front of a line equidistant between the front and rear edges of the rudder, the cross-piece 32 forming the pivotal axis of the rudder, so as to constitute a balanced rudder.

From Project Gutenberg

By this arrangement we obtain a forward surface which is almost entirely free from pressure under ordinary conditions of flight, but which even if not moved at all from its original position becomes an efficient lifting-surface whenever the speed of the machine is accidentally reduced very much below the normal, and thus largely counteracts that backward travel of the centre of pressure on the aeroplanes which has frequently been productive of serious injuries by causing the machine to turn downward and forward and strike the ground head-on.

From Project Gutenberg