What are three common visual wind indicators?

The correct answer highlights three common visual wind indicators: wind socks, tetrahedrons, and wind tees.

Wind socks are one of the most recognizable indicators of wind direction and strength, often used at airports and other outdoor facilities to provide pilots and other users with real-time information about prevailing wind conditions. The orientation and angle of the wind sock indicate the wind direction, while its fullness provides an indication of wind speed.

Tetrahedrons are another effective visual indicator. They are triangular-shaped devices that pivot freely on a vertical axis, always aligning with the wind direction. This characteristic makes them particularly useful at airfields and heliports, offering a clear view of the wind direction to pilots.

Wind tees also serve a similar function. They are structured to rotate and align with the wind, providing pilots and other observers with a straightforward visual representation of wind direction. Like the wind sock and tetrahedron, the wind tee is vital in aviation contexts to ensure safety during takeoff and landing.

In contrast, while options that include wind arrows, flags, or smoke also indicate wind direction, they do not represent standard visual indicators specifically used in aviation settings. Factors like jetties and anemometers serve different purposes and might not be as easily recognizable or effective for providing