MT ANG is getting C-130 upgrades MT ANG gets C-130 upgrade By: Asher Lynde and last updated 2021-07-25 18:42:58-04 GREAT FALLS â Not many planes come through Great Falls. They certainly donât come or go as fast as the fighter jets that used to occupy the tarmac years ago, but now the Montana Air National Guard is going through another aircraft conversion. They are transitioning from C-130 H1 models to newer H3 models, which are about 20 years newer and provide much more for the pilots. To the untrained eye, they do look similar, but the 20-year difference is a huge upgrade for MT ANG.