Aircraft Horizontal Situation Indicator (HSI) Presentation Explained

What does the HSI presentation "G" indicate about the aircraft's position and heading? The HSI presentation "G" corresponds to the aircraft being on a reciprocal heading with respect to the inbound course, indicating it is flying away from the set course.

Understanding HSI Presentation "G"

Aircraft Position: The HSI presentation "G" indicates that the aircraft is flying in the opposite direction of the set course on the Horizontal Situation Indicator. When the needle points to "G," it means the aircraft is 180 degrees off the selected course.

Reciprocal Heading:

Definition: A reciprocal heading refers to a direction that is exactly opposite to the present course. In aviation, this term is used to describe an aircraft flying in the completely opposite direction from its intended path.

HSI Presentation Interpretation:

Indicating Flight Direction: When the HSI presentation shows "G," pilots know that the aircraft is not on the planned course and is heading away from it. This information helps pilots make necessary corrections to get back on track.

Overall, the HSI presentation "G" is a crucial indicator for pilots to understand the current position of the aircraft in relation to the set course and ensure safe navigation during flights.

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