From the course: Cert Prep FAA 107 Commercial Drone License

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Air density, air stability, and fronts

Air density, air stability, and fronts

From the course: Cert Prep FAA 107 Commercial Drone License

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Air density, air stability, and fronts

- We have different air density, depending on altitude, temperature, and humidity. The less dense the air, the less air molecules the propellers have to bite, and then the harder it is for the aircraft to fly. At higher altitudes, air is less dense than at lower altitudes. This affects the performance of the aircraft. Hot air is less dense than cool air, and this also affects the performance of the aircraft. Humidity is also a factor. Atmospheric stability describes a state in which the air resists vertical displacement. And in an unstable environment, we get turbulent airflow. Stable air is characterized by smooth air, fair to poor visibility, stratus clouds and fog, and continuous precipitation. Unstable air is characterized by rough air, this is turbulence, good visibility, except in blowing obstructions, cumulous clouds, and showery precipitation. Weather conditions that affect performance include: atmospheric…

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