3D Cam, thanks for the history lesson
, I bow to your superior knowledge.
I agree with you that the type selected should be based on the worst case, within reason, not the average.
Basically you will need two AB139s to do the job that one S61/S92 could do if a big incident occurs, so effectively the SAR coverage over the S Coast will be halved (in capacity terms) from 2007 and that is if the rumours bubbling under about the 139 are not true - it could be worse!