Electrical aircraft are an important area of modern engineering development to meet the increasing air travel demand while managing a reduction of dependence on fossil fuels. The challenge is exacerbated due to the high sensitivity of aircraft performance with respect to mass and therefore superconducting machines are seen as a possible solution. A key enabler is to reduce the overall size of the system including cooling to lower the mass. Key importance to adoption of superconducting motors is the A.C. loss phenomena which increases the cooling power required to operate HTS systems. In the past several demonstration machines have not measured the in-situ A.C. loss or tested new loss reduction technologies . In order to progress the field motor performance as a function of the A.C. loss needs to be understood as well as being able to test A.C. loss reduction techniques resulting from simulation and manufacturing advancements. Therefore, in this paper a novel machine design is presented to enable the measurement of A.C. loss within a machine environment to be built and tested this year and an accurate estimation of the airborne cooling power required is detailed. The novelty of this machine is the enablement of quick and accurate A.C loss measurement of a wide range of superconducting technology including MgB2, Roebel cables and pancake coils Along with the new design preliminary simulation and experimental results are outlined which are used to calculated anticipated A.C. loss cooling power required aboard an aircraft using real load demand data supplied by Airbus.
 Ainslie, Mark, Mitsuru Izumi, and Motohiro Miki. "Recent advances in superconducting rotating machines: an introduction to the ‘Focus on Superconducting Rotating Machines’." Superconductor Science and Technology 29.6 (2016): 60303-60305.