Which option is not a function of an air data computer?

Which option is not a function of an air data computer?

• A. Calculating TAS, Mach Number, Corrected Static Pressure, and Corrected Outside Air Temperature
• B. Obtaining Signals from Navigation Computers
• C. Originating Correction Signals to Transducers
• D. Driving Displays

Answer: (B)

An air data computer’s job is to turn raw pitot-static and temperature sensor inputs into usable air data for the cockpit and flight control systems. It takes the total pressure from the pitot tube, the static pressure from the static ports, and outside air temperature, then computes values such as indicated airspeed and Mach number, as well as corrected static pressure and corrected outside air temperature. It also uses altitude and temperature information to derive true airspeed. The processed data are then sent to the displays and to flight control/automation systems to drive their readings and logic. It may also provide corrected signals to the transducers so those sensors’ readings are calibrated before they’re used downstream. What the ADC does not do is obtain signals from navigation computers; navigation data come from navigation systems, not from the air data computer.

An air data computer’s job is to turn raw pitot-static and temperature sensor inputs into usable air data for the cockpit and flight control systems. It takes the total pressure from the pitot tube, the static pressure from the static ports, and outside air temperature, then computes values such as indicated airspeed and Mach number, as well as corrected static pressure and corrected outside air temperature. It also uses altitude and temperature information to derive true airspeed. The processed data are then sent to the displays and to flight control/automation systems to drive their readings and logic. It may also provide corrected signals to the transducers so those sensors’ readings are calibrated before they’re used downstream. What the ADC does not do is obtain signals from navigation computers; navigation data come from navigation systems, not from the air data computer.