Why not just have a "Rescue Service" that way many areas covered by one service cost...! simples........... well to me anyway!
Reasons are Police heli seems to be used to find lost souls and people who have not returned to a schedule, .
Air Ambulance all fed by subscriptions also seem to turn out to seemingly simple cases that Road Going Ambulance could achieve, just read the papers and watch TV local news to see what I mean
In Scotland the Military supply big rigs to find people who set out in a gale and are lost, or fall down a Ice covered Mountain.
Putting rescue IE Fire and Ambulance together, would mean just one operating base in strategic areas, a bad example is here in the North West of England, a new fire HQ control center( in Warrington) cost £35m has done away with many others, however the rank of individuals logic and knowledge of areas seems to be played by people who have not thought through their roles, just recently this "New Center" Tasked a Fire engine and crew to travel from Carlisle (North Cumbria) to a Country area (Rivington) between Chorley and Bolton,..... a round trip approaching 250 miles without any loiter time or mileage, but if we had combined Large town centers with "A Rescue Service" attached things like this bad example would or should not happen .
Time to think with joined up thoughts and not with the ideas put up by mega highly paid chiefs when the Indians are not consulted.