The Yorkshire Air Ambulance is an independent charity providing a life saving rapid response emergency service to 5 million people across the whole of Yorkshire. The service is operational seven days a week, 365 days a year. The YAA currently operates two helicopters one based at Nostell Air Support Unit, near Wakefield and the other at RAF Topcliffe, near Thirsk. To keep both of Yorkshire's Air Ambulances maintained and in the air, the YAA needs to raise £12,000 every single day, which is the equivalent of £4.4m a year.