What is the wind direction if a true heading of 135 degrees results in a ground track of 130 degrees?

To determine the wind direction when a true heading of 135 degrees results in a ground track of 130 degrees, you need to analyze the relationship between the heading, ground track, and wind vector.

In aviation, if the aircraft is heading 135 degrees but is tracking on the ground at 130 degrees, it means there is a wind that is either pushing the aircraft off course (tailwind or crosswind) or that it is compensating for the wind. The ground track indicates where the aircraft is actually going relative to the ground, while the heading indicates where the aircraft is pointed.

In this case, the true heading is slightly to the right of the ground track (135 degrees to 130 degrees). This implies a left drift caused by wind pushing from a direction that is to the right of the aircraft's path to compensate for the wind; thus, the wind is effectively coming from the south-west quadrant (since we are compensating to go slightly left).

To find the wind direction, you can calculate the wind correction angle, which is the difference between the heading and ground track. Here, the wind correction angle is 5 degrees to the left, which would imply that the wind is coming from the opposite direction of the wind correction angle