drives the wiper arms of the three internally
mechanical motion, to potentiometers within the
mounted potentiometers.
transmitter. These potentiometers convert the
The angle-of-attack system shows the pilot
mechanical motion to proportional electrical
aircraft pitch attitude with respect to the
voltages. These voltages go to associated angle-
surrounding air mass.
of-attack indicating and interface equipment.
The transmitter has a detector probe that
PITOT-STATIC SYSTEM. --Figure 6-17
senses changes in airflow. Changes in airflow
shows the airstream sensors of the pitot-static
cause the probe paddle to rotate. This, in turn,
Figure 6-17.-ADC system airstream senors.
6-15