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Preface to the Second Edition In this second edition, the outline of chapters and sections has been preserved. The subtitle вЂњAn IntroductionвЂќ, as suggested by several reviewers, has been deleted. The content, however, is brought up to date, both in the text and in the notes. Many passages in the text have been either corrected or improved Text books вЂў 1Thomas A. Ward., Aerospace Propulsion Systems, John Wiley & Sons. 2010 вЂў 2 ROBERT D. ZUCKER and OSCAR BIBLARZ, FUNDAMENTALS OF GAS DYNAMICS, 2ndEds, John Wiley & Sons. 2002 вЂў 3 Rolls-Royce plc, The Jet Engines, 5thEds, The Technical Publications Department, Derby, England, 1996

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