Aircraft Engineering and Aerospace Technology: Volume 23 Issue 4

Living Pictures

THE scientist engaged on practical research and experiment has to be something of an engineer and, indeed, of an inventor. An interesting example of the need for this kind of…

Shock‐Wave Shadow Photography in Tunnel and in Flight: The Practical Application of Optical Principles to the Investigation of a Full‐Scale Aerodynamic Problem

F.E. Lamplough

AN account is given or the principle of a three‐dimensional shadowgraph recorder, its exemplification in the laboratory and its application to models in open and closed jets…

The Semi‐articulated Multi‐wheel Bogie Undercarriage: A Statement of the Problems Involved Together with a Description of one Method of Overcoming Them

P. Person, J. Perdue

THE trend towards larger and heavier aircraft operating at higher speeds has brought with it a number of new requirements regarding both runway and landing gear design. For such…

Airflow Patterns in the Neighbourhood of Helicopter Rotors: A Description of Some Smoke Tests Carried out in a Wind‐Tunnel at Amsterdam

Ir. J. Meijer Drees, Ir. W.P. Hendal

In this paper results arc discussed of wind‐tunnel smoke tests with a small helicopter rotor. The test apparatus includes a specially developed hot‐wire smoke‐generator. An…

The Library Shelf

The purpose of the book, the author states, is to present currently available information on the properties of metallic materials at elevated temperatures for the use of the…

Methods of Spiral Spring Design: A Mathematical Treatment for Determining the Physical Dimensions and Behaviour under Straining Action

B. Alexander

THE purpose of this article is to present a mathematical treatment which has been found extremely useful in the design of spiral springs since it enables us to determine the…

Research Reports and Memoranda

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Memoranda of the United States…

Month in the Patent Office

These abstracts of British Patent Specifications are taken, by permission, from the officially prepared abridgments classified in Groups. Sets of Group abridgments can be obtained…

U.S. Patent Specifications

These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States Patent…