INTRODUCTIONTO Autogyros, Helicopters, and Other V/STOL Aircraft Volume I: OVERVIEW and AUTOGYROS Franklin D.Harris
"Helicopters remain a remarkable innovation to many.But if they have the opportunity to experience flight firsthand, their reaction is one of total jubilation.” As quoted by my wife,Susan Bullis Harris, May16,2004
And to Sue.Whenever I asked her if she thought I would finish this book,she'd reply, with conservative New England reserve,“Eventually.” vi TABLE OF CONTENTS PREFACE ixACKNOWLEDGMENTS xi OVERVIEW AUTOGYROS 11
2.1 ROLLING MOMENT 444444 13 2.2 FLAPPING HNGE.… 19 )3 LEAD-LAG HINGE 29 2.4 ROTOR STARTUP… 35 2.5 DIRECT CO八TROL 43 2.6 LONGITUDINAL TRIM. 51 2.6.1 Fundamentals
52 2.6.2 Blade Twisting Effect. 54 2.6.3 Flapping and Feathering Interchangeability 62 2.6.4 Stick Vibration..... 65 2.7 SWASHPLATE CONTROL 73 2.7.1 The E.Burke Wilford Rotor S System .74 2.7.2 Pitch-Roll Coupling With the Wilford System..... 77 2.7.3 The Raoul Hafner Rotor System-Part .81 2.7.4 Gust Response With Hafner Rotor System ....... 89 2.7.5 The Raoul Hafner Rotor System-Part