Aircraft Fuel Systems
Chapter One
Introduction
While aircraft fuel systems are not generally regarded as the most glamorous feature of aircraft
functionality they are an essential feature of all aircraft. Their implementation and functional
characteristics play a critical role in the design, certification and operational aspects of both
military and commercial (civil) aircraft. In fact the impact of fuel system design on aircraft
operational capability encompasses a range of technologies that are much more significant
than the nonspecialist would at first realize, particularly when considering the complexities of
large transport and high speed military aircraft applications.
To illustrate this point, Figure 1.1 shows the power and intersystem information flow for
a typical fuel system in a modern transport aircraft application. This `aircraft perspective'
demonstrates the interconnectivity of the fuel system with the overall aircraft and provides an
indication of the role of the aircraft fuel system in the functionality of the aircraft as a whole.
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