The service covers the counties of Hampshire and Isle of Wight and responds where required to major trauma injuries and other incidents in need of a fast response/transfer to hospital. Since early 2016, it has operated an
Airbus H135 helicopter, which is capable of night missions. This helicopter now allows the service to operate helicopter emergency medical service (HEMS) during both daylight and darkness hours from 7am to 2am, 365 days a year. In addition to the helicopter, a
critical care car (CCC) is operational during the same hours, carrying both a doctor and paramedic - allowing the charity to double the number of patients it attends to. The CCC is a Volvo XC90, with a personalised numberplate, HA10 WAA, an acronym for the charity's name, which was donated anonymously. The charity has a partnership with
Thames Valley Air Ambulance, both of which cover the area that South Central Ambulance Service covers, allowing each service to cover 19hours for 16 consecutive nights. This means Hampshire, Isle of Wight, Berkshire, Oxfordshire and Buckinghamshire all have HEMS cover 19hours a day. In the year ending September 2024, the charity raised £10.2million and spent £11.2M, of which £7.4M was used to fund the air ambulance service. ==Helicopter and crew==