and et al., “ Overcoming the Adoption Barrier to Electric Flight,” 54th AIAA Aerospace Sciences Meeting, AIAA Paper 2016-1022, 2016. Miranda D., “ 2020 NASA Technology Taxonomy,” NASA HQ-E-DAA-TN76545, Jan. It has been found that both vehicle classes with the charge-depleting parallel hybrid electric architecture provided fuel-burn benefits over their 2030 advanced technology counterparts under certain operational modes. The resulting multidisciplinary design space exploration environment was used to identify the optimum vision system designs and modes of operation for the minimum block fuel-burn objective. Thousands of electrified aircraft concepts with varying electrification, operation, and technology scenarios were sized under the same system-level requirements as their conventional counterpart. Different modes of operation were identified and parameterized with a range of design variables to investigate the feasibility and trade space for peak power shaving, climb power boosting, electric taxi, battery usage schedules, and in-flight battery recharge strategies. Parametric, physics-based models were created for the charge-depleting hybrid architecture. A set of airframe and propulsion system technologies projected to reach maturity by 2030 was infused into the aircraft models. Notional technology reference aircraft models were developed for a 19- and a 50-passenger aircraft based on publicly available data on Beechcraft 1900D and ATR 42-600, respectively. This paper explores the design spaces of a thin-haul and a regional aircraft with parallel hybrid-electric propulsion architectures for a 2030 entry into service date.
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