Postprint version. Published in 12th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference and 14th AIAA/ISSM Proceedings: Indianapolis, IN, September 17, 2012.
The definitive version is available at https://doi.org/10.2514/6.2012-5516.
As the energy storage capabilities of batteries and fuel cells advance, these technologies are increasingly being considered for aircraft primary propulsion. In addition to other fundamental differences from conventional systems, these concepts may have constant or even increasing mass throughout the mission. In this paper, the implications of constant or increasing mass on aircraft sizing are considered with the aim of generating insight for the design of these systems.
2012 authors. First published by American Institute of Aeronautics and Astronautics, Inc..