mostly be1900c's and pa-31's. I think they now have some be99's as well. interesting place to work if you like working hard and flying into exotic rural alaskan locales. the be1900's are run under part 121 while the pa-31's are run under part 135. the part 121 flying gets an exemption to fly under part 135 time and duty regs so most of the pilots fly 1400hrs a year---at least they used to.....