| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Naseby West | 4.83 km | 357.8° | Next, R=5.00 km, Angle=90.0° |
| Corby | 26.19 km | 66.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Daventry N | 40.65 km | 235.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB control point east | 25.77 km | 47.2° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB East | 9.76 km | 270.9° | Line 1.00 km (Radius 0.50 km) |
| Total: | 102.38 km | ||