Читать книгу Flight Theory and Aerodynamics - Joseph R. Badick - Страница 65

Figure 2.11 indicates the impact of a blockage of the pitot tube while an aircraft is flying at altitude. The resultant effect is that the airspeed indicator acts like an altimeter: as the aircraft climbs in altitude, the airspeed increases, and when the aircraft descends, the airspeed decreases.

In a traditional airspeed indicator with a diaphragm, what is happening in reference to our discussion on q, P, and H in the situation above? What is the impact of the blockage on the other pitot–static instruments? Why?

Figure 2.11 Blocked pitot tube and drain hole.

Source: U.S. Department of Transportation Federal Aviation Administration (2016b).