Plan B provides effectice cover within 15 minutes for the whole of the south East and only leaves the north west of Oxfordshire without 15 minute cover. A highly rural area with only the quite town of Bicester within it. In addition Brighton, although not within 15 minutes of any ASU under plan B will get extra resilliance as it will have access to two aircraft 16-17 minutes away.
Not sure where to go on that one, but just to clear some things up;
Bicester is clearly in the Northeast of the county and is 31 miles from both CRASU & Henlow and less than 10 mins from Benson. The whole Northwest of Oxfordshire can be covered within 15 mins from CRASU & Benson.
As it happens with your plan B,
a quiet part of Oxfordshire is within 3 x 15min circles, yet Brighton isn't
