He said teachers of other subjects had remarked on the team work, discipline and focus the academy students had brought to their lessons.
Academy student Justin Moka, 16, described the programme as "awesome".
"There's no distractions, no mucking around and that means we can achieve better," he said.
He hopes to sign up for the navy when he has finished school.
Fifteen-year-old Tautoro Matene said his grandfather had served in Vietnam and he wanted to follow in his footsteps in the defence force.
Phoenix Witehira, a student leader in the academy's Charlie Syndicate, said he had been inspired by movies to have a military career, while Tella Donnelly would like to join the New Zealand Police Force.
Fifteen academy students recently spent a week away in camp, hosted at Mitimiti's Matihetihe Marae and joined by Panguru Area School, to develop the spirit of adventure and teamwork.