If the temperature approaches 32F and the unmanned aircraft is flying through visible moisture in the air, what can a remote pilot expect to happen?

If the temperature approaches 32F and the unmanned aircraft is flying through visible moisture in the air, what can a remote pilot expect to happen?

• A. The UA will automatically descend
• B. The mission will continue unchanged
• C. A cloud will form
• D. The air will immediately clear

Answer: (C)

When moist air is near saturation and the temperature is around freezing, the rapid cooling and pressure changes around the aircraft as it moves through the air can cause water vapor to condense into tiny droplets. This creates a visible cloud or mist around the drone, which is the expected observation in these conditions. So the best answer is that a cloud will form. The other options don’t reflect what actually happens: moisture alone won’t trigger an automatic descent, and the presence of condensation means the air isn’t clearing or staying unchanged.

When moist air is near saturation and the temperature is around freezing, the rapid cooling and pressure changes around the aircraft as it moves through the air can cause water vapor to condense into tiny droplets. This creates a visible cloud or mist around the drone, which is the expected observation in these conditions. So the best answer is that a cloud will form. The other options don’t reflect what actually happens: moisture alone won’t trigger an automatic descent, and the presence of condensation means the air isn’t clearing or staying unchanged.