On a Standard Day, what is the standard temperature in Fahrenheit?

On a Standard Day, what is the standard temperature in Fahrenheit?

• A. 32 Fahrenheit
• B. 59 Fahrenheit
• C. 68 Fahrenheit
• D. 75 Fahrenheit

Answer: (B)

In aviation, a Standard Day uses a defined reference atmosphere where at sea level the temperature is 15°C, which equals 59°F. So the standard temperature in Fahrenheit is 59°F. This reference helps ensure performance data and calculations are consistent. The other temperatures listed are common values (32°F is freezing, 68°F is about 20°C, and 75°F is warmer) but they do not match the standardized 15°C (59°F) used for the Standard Day.

In aviation, a Standard Day uses a defined reference atmosphere where at sea level the temperature is 15°C, which equals 59°F. So the standard temperature in Fahrenheit is 59°F. This reference helps ensure performance data and calculations are consistent. The other temperatures listed are common values (32°F is freezing, 68°F is about 20°C, and 75°F is warmer) but they do not match the standardized 15°C (59°F) used for the Standard Day.