| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Leighton Buzzard NE | 9.03 km | 140.1° | Line 10.00 km (Radius 5.00 km), Max.alt. is 1.37 km |
| Grafham Water | 46.25 km | 31.0° | Cylinder R=10.00 km |
| Cambridge North | 33.12 km | 95.1° | Cylinder R=20.00 km |
| Colsterworth | 81.25 km | 317.9° | Cylinder R=40.00 km |
| Newport Pagnall | 80.44 km | 186.7° | Cylinder R=25.00 km |
| Dunstable Airfield | 27.17 km | 150.0° | Line 5.00 km, Angle=125.0° |
| Total: | 155.55 km / 415.07 km (268.22 km) | ||