What is the value for temperature on a standard day at sea level?

On a standard day at sea level, the temperature is defined as 59 degrees Fahrenheit or 15 degrees Celsius. This standard is part of the International Standard Atmosphere (ISA) model, which is widely used in aviation and meteorology. The model provides a baseline for altitude, pressure, temperature, and density, which are essential for flight planning and aircraft performance calculations.

The significance of understanding standard temperature is that it helps aviation professionals accurately assess differences in atmospheric conditions that can affect aircraft performance, such as lift and engine efficiency. Knowing the standard temperature at sea level allows mechanics and pilots to make necessary adjustments for calculations related to climb rates, fuel efficiency, and weather impacts on flight operations.