| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Leighton Buzzard NE | 9.03 km | 140.1° | Next, R=5.00 km, Angle=90.0° |
| Northampton West | 42.03 km | 321.8° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Silverstone | 17.49 km | 178.3° | Symmetric, Rmin=0.50 km, Rmax=10.00 km, Angle=180.0°, Cylinder R=0.50 km |
| Newport Pagnall | 17.86 km | 86.2° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Dunstable Airfield | 27.17 km | 150.0° | Line 5.00 km, Angle=125.0° |
| Total: | 104.55 km | ||