Page 10 - Understanding Flight

FM_Anderson 11/14/00 12:40 PM Page x

x INTRODUCTION

wing is the dominant characteristic in determining lift. Actually, the
shape of the wing is one of the least significant features when
understanding lift. The principles of lift are the same for a wing
flying right side up or in inverted flight.

A shortcoming of many books on the topic of aeronautics is that the
information is presented in a very complicated manner, often
mistaking mathematics for a physical explanation. This is of little use
to one seeking a clear understanding of the basic principles. It is our
belief that all fundamental concepts in aeronautics can be presented
in simple, physical terms, without the use of complicated
To be able to calculate mathematics. In fact, we believe that if something can only be
something is not the same as described in complex mathematical terms it is not really
understanding it. understood. To be able to calculate something is not the same
as understanding it.

The object of this book is to provide a clear, physical description of
lift and of basic aeronautical principles. This approach is useful to
one who desires a more intuitive understanding of airplanes and of
flight. This book is written for those interested in airplanes in
general, and those interested in becoming more proficient pilots.
Teachers and students who are looking for a better understanding of
flight will find this book useful. Even students of aeronautical
engineering will be able to learn from this book, where the physical
descriptions presented will supplement the more difficult
mathematical descriptions of the profession.

The first chapter, “Basic Concepts,” is an introduction to a basic set
of terms and concepts. This will give the reader and the authors a
common set of tools with which to begin the discussion of flight and
aeronautics.

The next chapter, “How Airplanes Fly,” is where we get into lift and
flight. We believe that this chapter gives the most complete and
correct physical description of lift to date. Like many before us, we