In the wind triangle, what does the line from point C to point B represent?

In the wind triangle, the line from point C to point B represents the groundspeed and true course. The wind triangle is a tool used to visualize the relationship between airspeed, true course, wind direction, and groundspeed. In this context:

• Point C represents the aircraft's current position or the point where the aircraft's true course intersects with the wind's effect.

• Point B indicates where the aircraft will travel over the ground, or its actual flight path considering the wind's influence.

The line from C to B illustrates the resultant vector that combines both the aircraft's airspeed and the effect of the wind. This resultant provides the true course along which the aircraft moves over the ground, showing how the aircraft's speed (groundspeed) and the intended direction (true course) are affected by the wind. Understanding this relationship is crucial for pilots to navigate accurately.

The options addressing wind direction and speed, heading and drift, as well as true airspeed and altitude, refer to different elements of flight navigation but do not specifically relate to the line in question, which focuses on the outcome of how the airspeed and wind variables combine to produce groundspeed and true course.