Circling Approach Calculator
Determine circling approach parameters based on aircraft category.
Aircraft Categories
| Cat | Speed (kt) | Std Radius | Exp Radius |
|---|---|---|---|
| A | < 91 | 1.3 nm | 1.3 nm |
| B | 91-120 | 1.5 nm | 1.7 nm |
| C | 121-140 | 1.7 nm | 2.7 nm |
| D | 141-165 | 2.3 nm | 3.6 nm |
| E | > 165 | 4.5 nm | 4.5 nm |
Circling Approach Tips
- Remain within protected airspace at all times
- Keep runway environment in sight continuously
- Do not descend below MDA until normal descent can be made
- Circle left whenever possible (better visibility)
- Execute missed approach if runway environment lost