Where is the inlet and outlet air temperature (IOAT) recorded?

The inlet and outlet air temperature (IOAT) is recorded at the T-1 probe located at the inlet plenum. The T-1 probe is specifically designed to measure the temperature of the air entering the system, which is essential for assessing the performance and efficiency of the air conditioning or environmental control systems in various types of aircraft.

Monitoring the IOAT helps in managing the thermal conditions within the aircraft environment, ensuring that systems operate within their designated parameters. This measurement is critical for maintaining safety and efficiency during flight operations. Other choices, while related to aircraft functions, do not specifically pertain to where the IOAT is recorded. For instance, the main cockpit display provides various data but is not directly responsible for the measurement of the inlet air temperature at the plenum, while the payload capacity gauge is concerned with the weight and balance of the aircraft, and the wing leading edge relates to aerodynamic performance rather than temperature measurements.