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Fundamental Sizing Implications Of Constant Or Increasing Weight Aircraft, Robert A. Mcdonald
Fundamental Sizing Implications Of Constant Or Increasing Weight Aircraft, Robert A. Mcdonald
Robert A. McDonald
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.
Aircraft Operations Based Mission Requirements, Robert A. Mcdonald
Aircraft Operations Based Mission Requirements, Robert A. Mcdonald
Robert A. McDonald
The mission capabilities of aircraft in the current commercial fleet are a combined result of many factors. The launch customer for each aircraft has a voice in determining the requirements. The manufacturer desires to best position the aircraft in the market considering their own aircraft and their competitors aircraft it will replace and compete with. Consequently, anyone considering the development of an aircraft to compete with or replace an aircraft in-service must do more than simply choose to meet the capabilities of that aircraft. This is especially true when unconventional systems are considered; the fundamental trade-offs for these systems may …