The launch of two new helicopters comes at a time when the Northland Rescue Helicopter service has flown a record number of callouts.
A tally of rescues show the service responded to 984 callouts last year, significantly up from 901 in 2017.
Northland Emergency Services Trust Chair Paul Ahlers said when the new choppers come into service in March it will increase the capability of its fleet of long-range Sikorsky helicopters.
"These wonderful new machines will enhance what is already New Zealand's leading rescue helicopter operation and with demand on our service increasing at a steady rate, the new machines couldn't be going into operation at a better time."
The new helicopters are currently being assembled and tested at the rescue chopper base in Whangarei and are on track to be ready for operation in March.