The next pictures are of the Westpac Rescue Air Ambulance. The helicopter is a Kawasaki BK117-B2, ZK-HLF. Unfortunately the chopper was called away on a mission during the day, but it was certainly good to have it there while it was available!
I've also included a picture of the Lifeflight Air Ambulance Fairchild SA227-AC Metroliner, ZK-LFT starting up. The Metro was not part of today's event, but it does share a hanger complex with the helicopter... so close enough :-)