The address for your sat nav is:
Redlands Airfield, Stratton Road, Wanborough, Swindon, SN4 0AA

Exit at M4 -J15, take the A419 north towards Cirencester, and leave at the first junction, sign posted to Swindon, Wanborough, hospital etc. At the roundabout take the third exit, sign posted to Wanboroiugh. Take the first left, follow this narrow road to the cross roads (about 1.5 miles). Turn left, Redlands Airfield is about 500 metres on the right hand side.

Exit the A419 at the Oxford Road roundabout, and take the third exit signposted Cirencester, Wanborough, Covingham. At the next roundabout take the second exit signposted Wanborough, continue over two mini roundabouts, over the flyover, follow this road for about a mile and Redlands Airfield will be on your left.