| Point de virage | Distance | Direction | Zone d'observation |
|---|---|---|---|
| Alton | 6,62 km | 308,5° | Suivant, R=5,00 km, Angle=90,0°, Max.alt. est 1,65 km |
| Mortimer Church | 25,88 km | 345,3° | Cylindre R=2,00 km |
| Malmesbury | 75,25 km | 288,9° | Cylindre R=20,00 km |
| Didcot | 57,47 km | 86,3° | Cylindre R=20,00 km |
| Melksham | 67,06 km | 246,6° | Cylindre R=15,00 km |
| Basingstoke N | 75,72 km | 93,8° | Cylindre R=5,00 km |
| Lasham West | 16,38 km | 191,1° | Cylindre R=1,50 km |
| Lasham Finish West | 4,51 km | 85,4° | Ligne 1,75 km, Angle=70,0° |
| Total : | 205,14 km / 446,94 km (322,27 km) | ||