Maules are known for their ruggedness and utility, so it’s no surprise that they’re popular with operators in Alaska and Canada. The M-7 is the load-hauler of the lineup. With a Lycoming O-540, six-cylinder engine (a 260-hp version is an option), the M-7 has loads of power to haul those big loads its interior can accommodate. The M-7 can be equipped with floats, a popular option for backcountry operators. Another remarkable thing about this plane is the service ceiling: the M-7-235 tops out at 20,000 feet. Oh, for what the plane lacks in top end, it more than makes up for on the slow side, with a stall speed of just 35 kts.