I think the difficulty in the UK is that the provision of air ambulances is the domain of profit making commercial contractors, and is not a joined up nationally controlled 'service', just that the funds for its existance are raised by charities, so is quite unlike the RNLI. Looking at the figures for VAT paid by the Yorkshire charity on aviation fuel last year, it would appear to be a tiny percentage of their operating costs compared to say vat on aircraft parts and servicing etc. Rather than an epetition for fuel vat why not have a good root and branch look at the whole air ambulance set up to save bigger money.?