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قراءة كتاب The Aeroplane Speaks. Fifth Edition
تنويه: تعرض هنا نبذة من اول ١٠ صفحات فقط من الكتاب الالكتروني، لقراءة الكتاب كاملا اضغط على الزر “اشتر الآن"
THE AEROPLANE SPEAKS
BY
H. BARBER, A.F.Ae.S.
(CAPTAIN, ROYAL FLYING CORPS)
WITH 36 FULL PAGES OF "TYPES OF AEROPLANES"
AND 87 SKETCHES AND DIAGRAMS
FIFTH EDITION
LONDON
McBRIDE, NAST & CO., LTD.
THE AEROPLANE SPEAKS.
First edition—December, 1916
Second edition—February, 1917
Third edition—April, 1917
Fourth edition—July, 1917
Fifth edition—December, 1917
FIRST REVIEWS:
C. G. G. in the AEROPLANE: "One hopes that the Subaltern Flying Officer will appreciate the gift which the author has given him out of his own vast store of experience, for the book contains the concentrated knowledge of many expensive years in tabloid form, or perhaps one should say in condensed milk form, seeing that it is easy to swallow and agreeable to the taste, as well as wholesome and nourishing. And, besides the young service aviator, there are thousands of young men, and women also, now employed in the aircraft industry, who will appreciate far better the value of the finicky little jobs they are doing if they will read this book and see how vital is their work to the man who flies."
THE FIELD: "Entirely different from any other text-book on the subject, not merely in its form, but in its capacity to convey a knowledge of the principles and practice of flying. Undoubtedly it is the best book on its subject."
THE UNITED SERVICE GAZETTE: "Should be in the hands of every person interested in aviation."
THE OUTLOOK: "As amusing as it is instructive."
THE MORNING POST: "Should be read and re-read by the would be and even the experienced pilot."
PRINTED IN ENGLAND BY
BILLING AND SONS, LIMITED
GUILDFORD
DEDICATED
TO THE
SUBALTERN FLYING OFFICER
MOTIVE
The reasons impelling me to write this book, the maiden effort of my pen, are, firstly, a strong desire to help the ordinary man to understand the Aeroplane and the joys and troubles of its Pilot; and, secondly, to produce something of practical assistance to the Pilot and his invaluable assistant the Rigger. Having had some eight years' experience in designing, building, and flying aeroplanes, I have hopes that the practical knowledge I have gained may offset the disadvantage of a hand more used to managing the "joy-stick" than the dreadful haltings, the many side-slips, the irregular speed, and, in short, the altogether disconcerting ways of a pen.
The matter contained in the Prologue appeared in the Field of May 6th, 13th, 20th, and 27th, 1916, and is now reprinted by the kind permission of the editor, Sir Theodore Cook.
I have much pleasure in also acknowledging the kindness of Mr. C. G. Grey, editor of the Aeroplane, to whom I am indebted for the valuable illustrations reproduced at the end of this book.
CONTENTS
| PROLOGUE | ||
| PAGE | ||
| PART I.— | THE ELEMENTARY PRINCIPLES AIR THEIR GRIEVANCES | 1 |
| II.— | THE PRINCIPLES, HAVING SETTLED THEIR DIFFERENCES, FINISH THE JOB | 15 |
| III.— | THE GREAT TEST | 27 |
| IV.— | CROSS COUNTRY | 38 |
|
|
||
| CHAPTER I.— | FLIGHT | 55 |
| II.— | STABILITY AND CONTROL | 70 |
| III.— | RIGGING | 90 |
| IV.— | PROPELLERS | 115 |
| V.— | MAINTENANCE | 126 |
| TYPES OF AEROPLANES | 130 | |
| GLOSSARY | 133 | |
THE AEROPLANE SPEAKS
PROLOGUE
PART I
THE ELEMENTARY PRINCIPLES AIR THEIR GRIEVANCES
The Lecture Hall at the Royal Flying Corps School for Officers was deserted. The pupils had dispersed, and the Officer Instructor, more fagged than any pupil, was out on the aerodrome watching the test of a new machine.
Deserted, did I say? But not so. The lecture that day had been upon the Elementary Principles of Flight, and they lingered yet. Upon the Blackboard was an illustration thus:
"I am the side view of a Surface," it said, mimicking the tones of the lecturer. "Flight is secured by driving me through the air at an angle inclined to the direction of motion."
"Quite right," said the Angle. "That's me, and I'm the famous Angle of Incidence."
"And," continued the Surface, "my action is to deflect the air downwards, and also, by fleeing from the air behind, to create