The Wales Air Ambulance Charitable Trust (Welsh: Ymddiriedolaeth Elusennol Ambiwlans Awyr Cymru), also known as Wales Air Ambulance Charity (WAAC; Welsh: Elusen Ambiwlans Awyr Cymru, EAAC), is a charity air ambulance service providing a free, life-saving helicopter emergency medical service (HEMS) for the critically ill and injured in Wales.
It is an independent charity that relies on charitable donations to supply and maintain a fleet of emergency aircraft and rapid response vehicles.
The Wales Air Ambulance Charity needs to raise funds every year to supply and maintain the aircraft and rapid response vehicle fleets.
The consultants and critical care practitioners who work for the service are supplied by EMRTS Cymru, a part of NHS Wales.
These are joined by G-WYDN and G-LOYW All helicopters are owned by Gama Aviation, who also provide the pilots, base engineers and maintenance for the aircraft.