TY - GENERIC DO - 10.20944/preprints202109.0094.v1 UR - http://dx.doi.org/10.20944/preprints202109.0094.v1 TI - Barriers and Challenges Going From Conventional to Cryogenic Superconducting Propulsion for Hybrid and All-Electric Aircrafts T2 - Preprints AU - Silva, F. Ferreira da AU - Fernandes, João F. P. AU - Branco, P. J. da Costa PY - 2021 DA - 2021/09/06 PB - Preprints