Final answer:
Total Air Temperature (TAT) is the temperature of the air as measured by an aircraft's instruments, while Static Air Temperature is the temperature of the air in its undisturbed state. In the given example, a higher TAT results in a greater energy requirement to maintain a certain interior temperature.
Step-by-step explanation:
Total Air Temperature (TAT) is the temperature of the air as measured by an aircraft's instruments while Static Air Temperature is the temperature of the air in its undisturbed state. TAT takes into account factors such as the aircraft's speed and the heat generated by air compression during flight, while Static Air Temperature is the ambient air temperature.
In the given example, if the TAT is 20°C and the Static Air Temperature is 10°C, it means that the aircraft's instruments are measuring a higher temperature due to factors like air compression. This difference in temperature affects the energy required to maintain a certain interior temperature, with a higher TAT requiring more energy to keep the interior temperature steady compared to a lower TAT.