The aspect ratio (AR) of an aircraft’s horizontal stabilizer (also known as the tailplane) is defined as the ratio of its span (b) to its average chord length (c).
The formula for calculating the aspect ratio of the horizontal stabilizer is as follows:
- Aspect Ratio (AR) is a dimensionless quantity; it has no SI units as it represents a ratio.Span (b) is the distance from one end of the horizontal stabilizer to the other, measured in meters (m).
- Average Chord Length (c) is the average width of the horizontal stabilizer from the leading edge to the trailing edge, measured in meters (m).