Extensive plans were made .
Extensive plans were approved by the Government for her conversion to gas turbine propulsion , for long ranged resource protection patrols of New Zealand 's newly declared 200 - mile EEZ , reputed to be the fourth largest in the world .
Extensive plans were made and approved by the Government for her conversion to gas turbine propulsion , for long ranged resource protection patrols of New Zealand 's newly declared 200 - mile EEZ , reputed to be the fourth largest in the world .