As the aerospace industries continue to evolve toward more energy efficient systems new technologies are emerging. An example of this technology would be the need for very large turbine generators to be used to power multiple wing propellers used on hybrid / electric aircraft. These new technologies are placing larger demands on motors in terms of operating speeds, temperatures, and efficiencies. Selecting the correct motor topology in order to meet these requirements is extremely important. The presentation will review advantages and disadvantages of motor topologies such as permanent magnet, induction, and switched reluctance. It will then discuss advanced material technologies which are being incorporated into permanent magnet motors to provide the power density solutions needed for aviation electrification demands.