A closer look at the front of G-GNAA. It is an MD Explorer helicopter with a dark green a white livery.
Looking at the rear of the helicopter reveals why it is so suited to air ambulance work: it has no rear tail rotor. This makes it much safer for people to walk around the aircraft. The rotor is replaced with air forced at great speed out of a vent in the tail. This counteracts the spinning of the main rotors and keeps the helicopter stable.
Inside is small, but very tidy and clinical. The orange grab-bags can be seen.
Looking towards the rear of the craft from inside, you can see a seat for the paramedic or doctor caring for the patient on the stretcher. The monitor can also be seen.
The silhouetted view of the underside of the helicopter.