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General Aviation Aircraft Design,

Edition 2 Applied Methods and Procedures

Editors: By Snorri Gudmundsson

Publication Date: 25 Jan 2022

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General Aviation Aircraft Design, Second Edition, continues to be the engineer’s best source for answers to realistic aircraft design questions. The book has been expanded to provide design guidance for additional classes of aircraft, including seaplanes, biplanes, UAS, high-speed business jets, and electric airplanes. In addition to conventional powerplants, design guidance for battery systems, electric motors, and complete electric powertrains is offered. The second edition contains new chapters:

Thrust Modeling for Gas Turbines

Longitudinal Stability and Control

Lateral and Directional Stability and Control

These new chapters offer multiple practical methods to simplify the estimation of stability derivatives and introduce hinge moments and basic control system design. Furthermore, all chapters have been reorganized and feature updated material with additional analysis methods. This edition also provides an introduction to design optimization using a wing optimization as an example for the beginner.

Written by an engineer with more than 25 years of design experience, professional engineers, aircraft designers, aerodynamicists, structural analysts, performance analysts, researchers, and aerospace engineering students will value the book as the classic go-to for aircraft design.

Key Features

The printed book is now in color, with 1011 figures and illustrations!
Presents the most common methods for conceptual aircraft design
Clear presentation splits text into shaded regions, separating engineering topics from mathematical derivations and examples
Design topics range from the "new" 14 CFR Part 23 to analysis of ducted fans. All chapters feature updated material with additional analysis methods. Many chapters have been reorganized for further help. Introduction to design optimization is provided using a wing optimization as an example for the beginner
Three new chapters are offered, two of which focus on stability and control. These offer multiple practical methods to simplify the estimation of stability derivatives. The chapters introduce hinge moments and basic control system design
Real-world examples using aircraft such as the Cirrus SR-22 and Learjet 45

About the author

By Snorri Gudmundsson, Department of Aerospace Engineering, Embry-Riddle Aeronautical University, FL, USA

CHAPTER 1 – AIRCRAFT DESIGN PROCESS

Introduction to the "New Part 23 regulations."

Typical development timeline for GA aircraft – manufacturing plan in a flowchart.

Flow charts and task breakdown for design algorithm.

Enlarged introduction to project management that discussed Gantt and PERT to name a few.

CHAPTER 2 – AIRCRAFT COST ANALYSIS

Improved formulation of Development Cost Analysis.

Air transport concepts introduced.

Development cost presented in a flow-chart.

Updated and revised CERs to keep up with times.

Revised cost of avionics, propellers, and engines.

Evaluation of the accuracy of the Eastlake method.

CHAPTER 3 – INITIAL SIZING

Enlarged collection of constraints (T/W).

Improved formulation for initial sizing.

Enlarged section on Trade Studies.

Introduction to Design Optimization, including Linear and Nonlinear Programming.

A detailed example is presented showing how a wing can be optimized using a zero-order optimization.

CHAPTER 4 – AIRCRAFT CONCEPTUAL LAYOUT

Design guidance: How to design a good aircraft.

CHAPTER 5 – AIRCRAFT STRUCTURAL LAYOUT

Added a mathematical explanation about why thicker wing leads to a lighter wing.

CHAPTER 6 – AIRCRAFT WEIGHT ANALYSIS

Chapter is reorganized.

Flowchart guidance for weight analysis.

NEW: Initial weight for an electric aircraft has been added.

Initial weight by mission analysis has been added.

Number of statistical weight estimation methods increased from two to four with the addition of methods by Cessna and Torenbeek.

Improved definition of positioning of components in aircraft.

Enlarged and revised section that focuses on the CG envelope.

New table with CG ranges for a large selection of existing aircraft.

Enlarged discussion of factors that affect the creation of the CG envelope.

Formulas for initial estimation of regulatory landing impact loads for creating CG isopleths in the CG envelope provided.

CHAPTER 7 – SELECTING THE POWER PLANT

Discussion of factors affecting the selection of the powerplant improved and enlarged.

Improved focus on piston engines that includes the basic theory of internal combustion engines.

Revised and enlarged discussion of piston engine installation that gives detailed insight into dos-and-don’ts of inlet and exit design for engine cooling.

Improved introduction to gas turbines, with the Mattingly method of thrust estimation moved to a dedicated chapter (Chapter 14).

Inlet design for turbofan engines improved.

NEW: A section completely dedicated to electric engines, power, and battery system design has been added.

CHAPTER 8 – THE ANATOMY OF THE AIRFOIL

Revised and enlarged discussion airfoils.

Revised discussion of compressibility effects.

Revised decision matrix for airfoil selection.

CHAPTER 9 – THE ANATOMY OF THE WING

Improved treatment of trapezoidal wing geometry.

Revised discussion about the geometric wing properties.

Essential formulas to determine wing properties added to diagrams for added convenience.

Improved discussion of delta wing theory.

Expanded discussion of ground effect.

Expanded and revised discussion of span efficiency.

CHAPTER 10 – THE ANATOMY OF LIFT ENHANCEMENT

Added decision matrix for selection of high-lift system.

Added Quick-guide selection tables for leading-edge high-lift systems.

Added Quick-guide selection tables for trailing-edge high-lift systems.

Wingtip design chapter enlarged with two additional wingtip designs.

CHAPTER 11 – THE ANATOMY OF THE TAIL

Chapter redesigned for improved presentation.

Added discussion and design for spin recovery.

Guidelines for tail design improved.

Added method for tail sizing for arbitrary fuselage shapes.

CHAPTER 12 – THE ANATOMY OF THE FUSELAGE

Various minor improvements.

CHAPTER 13 – THE ANATOMY OF THE LANDING GEAR

Impact analysis for dynamic loading of landing gear.

CHAPTER 14 – THRUST MODELING FOR GAS TURBINES

NEW CHAPTER!

Basics of fluid mechanics.

Theory of reactive thrust.

Mattingly models are presented in this chapter.

CHAPTER 15 – THRUST MODELING FOR PROPELLERS

Revised organization of material.

Added formulae for the estimation of propeller noise levels.

Added more methods to estimate static thrust.

Revised initial thrust modeling for fixed pitch propellers

Revised initial thrust modeling for constant-speed propellers

Ducted fan propulsion added

CHAPTER 16 – AIRCRAFT DRAG ANALYSIS

Chapter reorganized for easier use.

Definition of drag concepts revised.

Presentation of drag model correction for low-speed and high-speed improved.

Added discussion of estimation of 2D drag in a wind-tunnel.

Added discussion of surface waviness on NLF airfoil drag.

Added roadmap for how to estimate drag for a complete aircraft.

Added multiple skin friction models from the literature.

Greatly improved treatment of wave drag.

Greatly improved drag analysis of a business jet example, used in performance chapters.

Revised presentation of miscellaneous drag.

Added drag of deployed spoilers.

CHAPTER 17 – PERFORMANCE – INTRODUCTION

Revised presentation of performance theory based on Miele’s formulation.

Section on atmospheric modeling improved.

Section on airspeed theory improved.

CHAPTER 18 – PERFORMANCE – TAKE-OFF

Guidance for beginner analysts: What Analyses Must I Do?

Various other minor improvements.

CHAPTER 19 – PERFORMANCE – CLIMB

Guidance for beginner analysts: What Analyses Must I Do?

Formulation adapted to Miele’s formulation.

General climb analysis methods expanded for adjusted drag model.

Introduction to climb optimization.

CHAPTER 20 – PERFORMANCE – CRUISE

Guidance for beginner analysts: What Analyses Must I Do?

Formulation adapted to Miele’s formulation.

Cruise analysis using a business jet with low-speed and high-speed corrections.

Improved presentation of flight envelope now includes high subsonic aircraft.

Improved presentation of accelerated flight now includes the loop maneuver.

CHAPTER 21 – PERFORMANCE – RANGE ANALYSIS

Guidance for beginner analysts: What Analyses Must I Do?

Improved organization.

Range and endurance now in both UK- and SI-systems.

NEW: Cruise range and endurance for electric aircraft added.

Improved discussion of specific range.

Improved methods to estimate cruise fuel.

CHAPTER 22 – PERFORMANCE – DESCENT

Guidance for beginner analysts: What Analyses Must I Do?

Formulation adapted to Miele’s formulation.

NEW: Sailplane Glide Performance.

CHAPTER 23 – PERFORMANCE – LANDING

Guidance for beginner analysts: What Analyses Must I Do?

Various minor improvements.

CHAPTER 24 – LONGITUDINAL STABILITY AND CONTROL

NEW CHAPTER!

Rigid body 6-DOF equations of motion.

Rigid body EOMs reduced for longitudinal stability and control.

Static longitudinal stability and control.

Multiple graphs digitized by author.

Refined horizontal tail sizing.

Introduction to hinge moments and control system loads.

CHAPTER 25 – LAT-DIR STABILITY AND CONTROL

NEW CHAPTER!

Rigid body EOMs reduced for lateral-directional stability and control.

Static directional stability and control.

Static lateral stability and control.

Multiple graphs digitized by author.

Basics of roll and yaw control.

CHAPTER 26 – MISCELLANEOUS DESIGN NOTES

Aircraft Design Checklist revised.

Added formulation for the estimation of horizontal tail stall.

Section on Faults and Fixes enlarged with the addition of new problems…and their solutions.

APPENDIX A: ATMOSPHERIC MODELING

Various minor improvements.

APPENDIX B: AEROSPACE ENGINEER'S FORMULA SHEET

Various minor improvements.

APPENDIX C: DESIGN OF BIPLANES AND SEAPLANES

NEW APPENDIX!

Presents design methods for biplanes.

Presents design methods for seaplanes.

APPENDIX D: DERIVATION OF LANDING SIDE-CONSTRAINT

NEW APPENDIX!

Covers a long derivation of a landing side constraint.

Title Reviews

"Gudmundsson has set a benchmark for textbooks on aircraft design. Within its declared bounds this book is remarkably comprehensive, with introductory material, clearly presented mathematical tools with assumptions and derivations, notes on when and where to apply them and numerous real-world examples.

Gudmundsson truly has a feel for design, something he tries to convey throughout, describing each task, the nature of the designer’s approach and the wide-ranging set of constraints to be addressed. As well as all the analytical work described above,
aircraft design requires graphic skills. A real pleasure in this book is the high quality of the illustrations; Gudmundsson is right to be proud of them.

Of the many textbooks on aircraft design this is my favourite. The author’s declared aim remained, as with the first edition, to gather information and procedures helpful to the designer. He has achieved this to a very impressive standard. By including all aspects, even organisation and management of the process, he has made this a valuable and comprehensive ‘go-to’ reference source."—John M Robertson, CEng MIMechE MRAeS, RAeS General Aviation Group

ISBN: 9780128184653

Page Count: 1142

Illustrations : 700 illustrations (600 in full color)

Retail Price (USD) :

9780124199538; 9780750668170; 9780081020760

Professional engineers in the aircraft industry, aircraft manufacturers, aircraft maintenance and modification organizations, researchers, universities and students of aerospace engineering

General Aviation Aircraft Design,

Editors: By Snorri Gudmundsson

Key Features

About the author

Title Reviews

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