INDEX.

Aileron and warp control, 101

Aluminium, 16

Anchorage of wires to eyebolts, 55

Ash, 10

Ash, weight of, 10

Axle fairings, 98

Biplane trussing, 62

Birch, 12

Birch, weight of, 12

Brazing and welding, 52

Bridge-type undercarriage suspension, 98

Control systems, 101

Control by inherent stability, 102

Control, vertical column, 103

Control, wheel type, 104

Control, the “Dep,” 106

Control, the “Wright,” 107

Control surfaces, balancing of, 102

Cypress, 13

Drift bracing, 65

Drilling of bolt-holes, 124

Duralumin, 17

Engine mountings, 116

Engine mountings, rotary, 118

Engine mountings, overhung, 119

Engine mountings, stationary, 121

Engine mounting materials, 117

Erection and alignment, 123

Fabric, attachment of, 47

Fabric, sagging of, 40

Fabric, tension of, 48

Fabric, friction blocks, 49

False ribs, 41

Fineness ratio, 26

Fuselage construction, 67

Fuselage covering, 71

Fuselage contours, 75

Fuselage erection, 127

Fuselage fittings, 77

Fuselage struts, 28

Fuselage types, 67

Glue, defects of, in wing spars, 33

Hickory, 11

Interplane struts, tapering of, 26

Interplane strut connections, 51

Leading and trailing edges, 43

Lift wires, anchorage of, 62

Locking of bolts, 125

Longerons, 68

Longeron sections, 69

Longeron, jointing of, 70

Longeron, shaping of, 69

Mahogany, Honduras, 11

Mahogany, Honduras, weight of, 11

Mahogany, Cuban, weight of, 12

Main planes, truing of, 126

Main spars, shaping of, 32

Materials, 6

Maurice Farman strut arrangement, 62

Metal construction, general, 4

Metal wing construction, 45

Methods of manufacture, general, 3

Moisture content of timber, 8

Monoplane bracing, 60

Monocoque fuselage construction, 72

Multi-ply wood, 13

Oleo-pneumatic gear, 95

Oregon pine, 12

Parang, 13

Piano wire bracing, 108

Piano wire connections, 109

Plane construction, 30

Plane construction, details of, 40

Planes, arrangement of, 33

Poplar, 12

Pratt truss, 59

Raked wing tip, efficiency of, 43

Ribs, spacing of, 40

Ribs, types in use, 34

Ribs under compression, 36

Shakes, 14

Shrinkage, 7

Silver spruce, 8

Silver spruce, weight of, 8

Single-strut truss, 63

Spar construction, hollow, 20–22

Spar, laminated, 19

Spar sections, 19

Spars and struts, 18

Spruce fir, 9

Standardization of details, general, 2

Steel, 15

Steel tube, 16

Steel-tube fuselage construction, 84

Stranded cable, 109

Stranded-cable connections, 111

Streamline wires, 113

Streamline wires, attachments, 113

Strut sections, 23

Strut sections, design of, 26

Strut materials, 25

Strut socket, “Wright,” 53

Strut socket, “Cody,” 53

Strut-socket fairings, 58

Suspension springs, steel, 95

Suspension springs, rubber, 97

Tabulated tests, unreliability of, 8

Three-ply fuselage construction, 71

Thunder shakes, 11

Timber, defects in, 14

Trailing edge, wire, 43

Twisted grain, 14

Undercarriage brakes, 99

Undercarriage details, 93

Undercarriage, principles of design, 86

Undercarriage skids, 93

Undercarriage types, 89

Walnut, 11

White deal, 9

Wing baffles, 44

Wing fittings, attachment to spars, 51

Wing-tip construction, 39

Wing-tip details, 38

Wing-trussing systems, 59

Wireless wing structures, 61

Wires and connections, 108

Wires, results of tests on, 109

Wires, relative strengths of, 112

Wires, tension of, 134

Wood, choice of a suitable, 6

Wood, variable qualities of, 6

PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, LONDON AND BECCLES.

Just Published. Over 100 pages. With numerous Diagrams. Fcap 8vo. Paper wrapper, Price 3s. 6d. net.

The Aircraft Identification Book

A CONCISE GUIDE TO THE RECOGNITION OF DIFFERENT TYPES AND MAKES OF ALL KINDS OF AEROPLANES AND AIRSHIPS

BY R. BORLASE MATTHEWS

Associate Member of the Institution of Civil Engineers, Member of the Institution of Electrical Engineers, Fellow of the Royal Aeronautical Society, Whitworth Exhibitioner, Author of the “Aviation Pocket-Book,” etc.

AND

G. T. CLARKSON

EXTRACT FROM PREFACE

Just as one make of motor car can be distinguished from another by noting some characteristic detail, such as the radiator, the trade mark, the hubs, etc., so can the main types of aeroplanes and airships be readily differentiated by the recognition of the outstanding features of each machine. It must be admitted, nevertheless, that it needs considerable experience to be able definitely to classify detail modifications of a particular type of aircraft, for the difference is often very slight. Besides, the machines are frequently only visible at a great distance, and for but short periods (their speed being so high—60 to 150 miles per hour). There are, moreover, physical difficulties to contend with, in the form of clouds, effects of winds, position of the sun, etc.

It is claimed, however, that this book will enable the reader to identify any aircraft, provided it can be seen for sufficient time to observe its main features.

LONDON CROSBY LOCKWOOD AND SON, 7 STATIONERS’ HALL COURT, LUDGATE HILL, E.C. 4, AND 5 BROADWAY, WESTMINSTER, S.W. 1

LIST OF BOOKS ON AVIATION.

THE AVIATION POCKET BOOK.

A Compendium of Modern Practice and a collection of useful Notes, Formulæ, Rules and Tables relating to Aeronautics. By R. Borlase Matthews, Wh. Ex., A.M.Inst.C.E., M.I.E.E., F.R.Ae.S., etc. Assisted by Specialists. New Edition, revised and enlarged. Fully illustrated. Fcap 8vo. 1918 Edition. Price 6s. net.

THE A.B.C. OF AVIATION.

A Complete Practical Treatise outlining clearly the elements of Aeronautical Engineering, with special reference to simplified explanations of the Theory of Flight, Aerodynamics, and Basic Principles underlying the Action of Balloons and Airplanes of all types. By Captain Victor W. Pagé, of the U.S. Air Service. Demy 8vo. 274 pages, with very numerous illustrations and 4 folding plates. Price 12s. 6d. net.

This Work contains valuable instructions for all Aviation Students, Airplane Mechanics, Squadron Engineering Officers, and every one interested in Construction and Up-keep of Airplanes.

AVIATION ENGINES.

Their Design, Construction, Operation, and Repair. A Book for the Student, Engineer, and all interested in Aviation. Giving practical instruction on repair and maintenance. By Captain Victor W. Pagé, of the U.S. Air Service. 580 pages, with over 240 illustrations. Medium 8vo, 16s. net.

GLOSSARY OF AVIATION TERMS.

English-French, French-English. Cr. 8vo, 100 pages, with plates and illustrations. By Captain Victor W. Pagé and Lieut. Paul Montariol. Price 5s. net.

AVIATION CHART.

A large Wall Chart, showing a typical Aeroplane Power Plant in Part Section with all important components. Folding to pocket size. Price 2s. 6d. net.

OBSERVATION BALLOONS.

By Emil J. Widmer. 150 pages, with 3 plates and 38 illustrations. Crown 8vo. 16s. net.

CROSBY LOCKWOOD AND SON, 7 STATIONERS’ HALL COURT, E.C. 4.