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\chapter[INTRODUCTION]{INTRODUCTION}\label{chap:intro}
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Motivation
Objectives
Questions Answered

However, there is a distinct lack of practical knowledge
associated with the physical construction of such systems. More
public research in constructing distributed hybrid turbo-electric
aircraft is needed. This paper addresses the knowledge gap by
detailing the real-world implementation of electrical systems,
safety systems, experimental results, and mechanical–electrical
powertrain interactions. These objectives are accomplished specifically through
a relatively low voltage electrical system comprised of a pulley coupled generator, battery, distributed propulsors, and requsite mechanisms to enable safe operation. A second electrical configuration was implemented into the Cessna test rig \cite{melvincessna}to observe the transient performance of the mechainical elements of a turboelectic powertrain.
\par
The multifaceted nature of this work presents a unique opportunity to compare the disperate effects of two electrical configurations on the mechanical systems common to both, in addition to what has been gathered from their individual operation. Configuration one is more representative of real hybrid turboelectric aircraft by nature of its use of a battery and accompanying safety mechanisms, distributed propulsion, and full integration into an airframe. Thus, the results obtained from configuration one provides insight into the benefits afforded to hybrid turboelectric systems by the inclusion of batteries, the considerations necessarry to safely use these batteries, and the increased takeoff performance of electrically augmented aircraft. Configuration two presents a worst case scenario
\par
All sections pertaining to configuration one are recapitulated from research originally funded by the FAA and eventually published in ASME's Journal of Engineering for Gas Turbines and Power \cite{CessnaASME}. Similarly, sections over configuration two cover research funded by NASA. The author is pursuing publication of this work for presentation at ASME's 2025 Turboexpo Conference.
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