Which of the following is another wind indicator besides the windsock?

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Multiple Choice

Which of the following is another wind indicator besides the windsock?

Wind indicators on the ground help pilots judge wind direction for takeoff and landing. Besides the windsock, a tetrahedron wind indicator (often called the Wind T) serves the same purpose in a different form. The tetrahedron is a small three-sided pyramid mounted on a pole; the wind pushes it so it orients toward the incoming airflow, giving a clear visual cue of wind direction from a distance and in varying light conditions. This is different from how a windsock shows direction and approximate speed by its extension and angle. Barometers measure atmospheric pressure, not wind, so they don’t indicate wind direction or speed. Anemometers measure wind speed, but they’re typically part of instruments rather than a conspicuous ground indicator like a windsock.

Wind indicators on the ground help pilots judge wind direction for takeoff and landing. Besides the windsock, a tetrahedron wind indicator (often called the Wind T) serves the same purpose in a different form. The tetrahedron is a small three-sided pyramid mounted on a pole; the wind pushes it so it orients toward the incoming airflow, giving a clear visual cue of wind direction from a distance and in varying light conditions. This is different from how a windsock shows direction and approximate speed by its extension and angle.

Barometers measure atmospheric pressure, not wind, so they don’t indicate wind direction or speed. Anemometers measure wind speed, but they’re typically part of instruments rather than a conspicuous ground indicator like a windsock.

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