Aircraft Engineering and Aerospace Technology: Volume 12 Issue 6

A CHANGE OF FORMAT

READERS will notice an alteration in the appearance of this page. The change is due to the need for conservation of paper which the times necessitate. As was announced last month…

Physiology and the Pilot: Three Articles on Various Aspects of the Medical Problems in Flying

J.P. Lawrie, Rodolfo Margaria, h med.

THE medical problems of flying were first seriously tackled during the latter part of the first world war, when it became obvious that mechanical construction was indivisible with…

Tricycle Undercarriage Design: An Analysis of the Inertia Loading Actions for the Modern Landing Gear

P.B. Walker

THE General Problem.—The inertia loading of a tricycle undercarriage presents a problem of considerable difficulty to designers. The type of tricycle under consideration has a…

Rotary‐Wing Aircraft: The Sixth Article of a Series Summarizin the Current State of knowledge

J.A.J. Bennett

ONE of the most troublesome problems associated with the development of rotary‐wing systems in which flapping hinges are utilized to compensate for the aero‐dynamic dissymmetry of…

Solid Organic Materials: A Survey of the Characteristics of a New Class of Materials for Use in Engineering

N.A. de Bruyne

CELLULOSE is Nature's strong material. It is the chief constituent of cotton flax and wood. Wood can be turned into sugars by treatment with hydrochloric acid Bergius process) and…

Research Reports and Memoranda

This report is a sequel to P.Sc.T. No. 108 and develops the author's two‐dimensional theory, extending it to the study of three‐dimensional movements—sub‐sonic, sonic, and…

Some Notes on Heinkel Production: An Outline of the System at Oranienburg

H.J.A. Wilson

THE development of the Heinkel He 111 from the first conception of the designer to the delivery of the finished machine to the suftwaffe is the subject of a recent book by a…

Modern Wooden Construction: The First of a Series of Articles on this Aspect of Production

A.R. Weyl

IN wooden aeroplane manufacture, the technique to be adopted in the workshop is more or less a matter of the engineering experience gained by mistakes and disappointments.

The Production of Extruded Valves

THERE are three processes by which internal combustion engine valves are made, differing chiefly in the initial stages. These are: (1) hand forging by drawing‐down the stem; (2…

Recent German Patents

Wing construction consisting of one main wing and one or more auxiliary wings which, by means of swinging arms hinged with the auxiliary wings, can be moved and whose angle of…

U.S. Patent Specifications

In combination with an aircraft fuselage, an annular support member inwardly spaced from the fuselage surface and intermediate the fuselage length, said surface having an opening…