Before you go much further with this discussion, perhaps you ought to read this link -
RAF plans huge cuts in aircraft and stations - Times Online
If the RAF is planning on cutting all of its Tornado fleet and nearly all of its Harrier Force, then how can it ever justify keeping SAR in its present form?
Also worth having a look here:
Petition to: stop any further cuts to our armed forces, to do so would be wholly irresponsible and place the security of our nation in danger. | Number10.gov.uk