The NZ student loan option does incur interest at 7% per annum if you are living outside of NZ. While living in NZ it is still interest free.
I paid for mine by pumping gas through the days and nights and flying on weekends. Back when I did my CPL the student loan wasn't even an option. It is a good feeling to have CPL, MEIR and C-cat instructors rating without owning anyone anything..
It is just a shame that I went to uni and put that on the student loan.. Jesus turned water into wine. I turned a student loan into Vodka and a 3 year headache...
