| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Wormingford | 0.00 km | 0.0° | Next, R=5.00 km, Angle=90.0° |
| Tibenham | 62.16 km | 23.1° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Kettering South | 127.97 km | 266.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Stradishall | 90.05 km | 105.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Wormingford | 28.46 km | 142.8° | Previous, R=0.50 km, Angle=90.0° |
| Total: | 308.63 km | ||