| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Bidford | 3.00 km | 89.7° | Next, R=5.00 km, Angle=90.0° |
| Olney | 78.49 km | 88.8° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=5.00 km |
| Calvert Rail Junction | 32.90 km | 220.5° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=5.00 km |
| Northampton West | 34.00 km | 359.5° | Symmetric, Rmin=5.00 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=5.00 km |
| Ettington | 42.07 km | 256.7° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Bidford | 12.99 km | 269.7° | Cylinder R=3.00 km |
| Total: | 200.46 km | ||