"Sorry, people, I need to get my pyjamas on and get going."

Twenty minutes into our interview and search-and-rescue pilot Liam Brettkelly has received a phone call to attend a car accident near Mamaku.

The crew has 10 minutes to open the hangar doors and pull the twin-engined BK117 helicopter onto the ramp while Brettkelly gets changed into a flight suit and helmet.

Soon after with all the crew on board, the jet engine roars to life and the whooshing motion of the rotating blades drowns out voices.

The helicopter is instantly off the ground, but by only