Brize apparently tracked the offender until just the other side of the R105 restricted area and then lost radar contact, reckoning that it went below their radar coverage. Both Bristol and Lyneham were unable to help and the suggestion is that the a/c landed in the triangle between Bristol, Bath & Tetbury. Pretty wide area I know but there cannot be that many strips in that area? Badminton were contacted but could not help. Any other ideas?????