| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| LBZ Leighton Buzzard NE | 9.03 km | 140.1° | Next, R=5.00 km, Angle=90.0°, Max.alt. is 1.31 km |
| NOW Northampton West | 42.03 km | 321.8° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| ACB Alconbury | 54.45 km | 72.0° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| STS Stony Stratford | 54.49 km | 230.6° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| DUNstable Airfield | 27.78 km | 134.6° | Cylinder R=3.00 km, Max.alt. is 1.07 km |
| Total: | 178.75 km | ||