A direct-drive solution for Hydrogen supplied all-electric airplane

This paper present a solution for traction motor in ultra light motored (ULM) aircraft applications. A new All electric aircraft is here presented with a hydrogen supplied fuel-cell system and a direct-drive configuration for traction motor. A reverse brushless solution with a distributed winding high pole-pair motor is presented for a 60 kW continuous power solution. Materials and geometry have been analyzed with a goal of high torque density and high speed realization. Motor design key points and losses estimation in comparison with the experimental results will be presented.