Except that NHS ambulance services normally operate their own rapid response vehicles crewed with paramedics or prehospital care practitioners. Unless Wiltshire NHS Ambulance Trust is unusual, the NHS is already providing this service. It may be that the air ambulance charity provides a doctor some or all of the time, but he/she must be the most expensive doctor on the planet at these prices!!! Several NHS ambulance trusts also have doctors in some rapid response vehicles where the cost is little more than the doctor's salary.....
Which leads me to ask exactly what has this charity been adding to patient care.....