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The purpose of this textbook is to present the elements of applied
aerodynamics and aeronautical engineering which relate directly to
the problems of flying operations. All Naval Aviators possess a natural
interest in the basic aerodynamic factors which affect the performance
of all aircraft. Due .to the increasing complexity of modem aircraft,
this natural interest must be applied to develop a sound understanding
of basic engineering principles and an appreciation of some of the more
advanced problems of aerodynamics and engineering. The safety and
effectiveness of flying operations will depend greatly on the understanding
and appreciation of how and why an airplane flies. The
principles of aerodynamics will provide the foundations for developing
exacting and precise flying techniques and operational procedures.
The content of this textbook has been arranged to provide as complete
as possible a reference for all phases of flying in Naval Aviation.
Hence, the text material is applicable to the problems of flight training,
transition training, and general flying operations. The manner
of presentation throughout the text has been designed to provide the
elements of both theory and application and will allow either directed
or unassisted study. As a result, the text material will be applicable
to supplement formal class lectures and briefings and provide reading
material as a background for training and flying operations.
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This volume is intended for students of engineering on courses or programmes of
study to graduate level.
The sequence of subject development in this edition commences with definitions
and concepts and goes on to cover incompressible flow, low speed aerofoil and wing
theory, compressible flow, high speed wing theory, viscous flow, boundary layers,
transition and turbulence, wing design, propellers and propulsion.
Accordingly the work deals first with the units, dimensions and properties of the
physical quantities used in aerodynamics then introduces common aeronautical
definitions before explaining the aerodynamic forces involved and the basics of
aerofoil characteristics. The fundamental fluid dynamics required for the development
of aerodynamics and the analysis of flows within and around solid boundaries
for air at subsonic speeds is explored in depth in the next two chapters, which
continue with those immediately following to use these and other methods to develop
aerofoil and wing theories for the estimation of aerodynamic characteristics in these
regimes. Attention is then turned to the aerodynamics of high speed air flows.
The laws governing the behaviour of the physical properties of air are applied to
the transonic and supersonic regimes and the aerodynamics of the abrupt changes
in the flow characteristics at these speeds are explained. The exploitation of these and
other theories is then used to explain the significant effects on wings in transonic and
supersonic flight respectively, and to develop appropriate aerodynamic characteristics.
Viscosity is a key physical quantity of air and its significance in aerodynamic
situations is next considered in depth. The useful concept of the boundary layer and
the development of properties of various flows when adjacent to solid boundaries,
build to a body of reliable methods for estimating the fluid forces due to viscosity and
notably, in aerodynamics, of skin friction and profile drag. Finally the two chapters
on wing design and flow control, and propellers and propulsion respectively, bring
together disparate aspects of the previous chapters as appropriate, to some practical
and individual applications of aerodynamics.
It is recognized that aerodynamic design makes extensive use of computational
aids. This is reflected in part in this volume by the introduction, where appropriate,
of descriptions and discussions of relevant computational techniques. However,
no comprehensive cover of computational methods is intended, and experience
in computational techniques is not required for a complete understanding of the
aerodynamics in this book.
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توسط fatemiThe Aviation Maintenance Technician Handbook—Airframe (FAA-H-8083-31) is one of a series of three handbooks for
persons preparing for certification as an airframe or powerplant mechanic. It is intended that this handbook provide the
basic information on principles, fundamentals, and technical procedures in the subject matter areas relating to the airframe
rating. It is designed to aid students enrolled in a formal course of instruction, as well as the individual who is studying on
his or her own. Since the knowledge requirements for the airframe and powerplant ratings closely parallel each other in
some subject areas, the chapters which discuss fire protection systems and electrical systems contain some material which
is also duplicated in the Aviation Maintenance Technician Handbook—Powerplant (FAA-H-8083-32).
This volume contains information on airframe construction features, assembly and rigging, fabric covering, structural repairs,
and aircraft welding. The handbook also contains an explanation of the units that make up the various airframe systems.
Because there are so many different types of aircraft in use today, it is reasonable to expect that differences exist in airframe
components and systems. To avoid undue repetition, the practice of using representative systems and units is carried out
throughout the handbook. Subject matter treatment is from a generalized point of view and should be supplemented by
reference to manufacturer's manuals or other textbooks if more detail is desired. This handbook is not intended to replace,
substitute for, or supersede official regulations or the manufacturer’s instructions. Occasionally the word “must” or similar
language is used where the desired action is deemed critical. The use of such language is not intended to add to, interpret,
or relieve a duty imposed by Title 14 of the Code of Federal Regulations (14 CFR).
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