| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Naseby West | 4.83 km | 357.8° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.68 km |
| Bury St Edmunds | 120.50 km | 96.9° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Northampton West | 118.67 km | 269.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Littleport | 94.82 km | 73.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB East | 92.18 km | 268.8° | Line 1.00 km (Radius 0.50 km) |
| Total: | 426.17 km | ||