| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Naseby West | 4.83 km | 357.8° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.37 km |
| Highham | 109.59 km | 96.9° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Northampton West | 107.89 km | 268.5° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Ely | 89.27 km | 77.4° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| HB East | 88.41 km | 273.5° | Line 1.00 km (Radius 0.50 km) |
| Total: | 395.16 km | ||