Aircraft Engineering and Aerospace Technology: Volume 29 Issue 11

An Eventful Month

THE month of October has produced a number of events of different kinds with an aeronautical interest. First, the Russian satellite was launched with conspicuous success. We shall…

The Detection of Fatigue Cracks in Specimens under Dynamic Loading: An Electrical Circuit Method for Metallic Materials

J.R. Linge

THE application of cemented wires to determine the location of initial failure in static tests on large specimens has been investigated, among others, by R. W. Powell in 1946.

Dynamic Similarity: A Brief Note on the Influence of Scale Factors

Ken S. Coward

WITH the advent of VTOL aircraft, dynamic similarity has become increasingly important. VTOL performance is dependent upon propeller diameter or upon the cross‐sectional area of a…

An Analytical Investigation of Creep under Combined Loadings: An Extension of Existing Theory

P. Narasimhamurthy

BISPLINGHOFF has given a comparative graph showing the relative importance of the parameters of design at various Mach numbers. At Mach numbers above five, i.e. in the range of…

Measurement of Adhesive Moduli: The Use of Ultrasonics to Measure the Dynamic Modulus of Metal‐to‐Metal Adhesive Joints

P.F. Tapp, A. Broodo, C.E. Horn, S.V. Castner

MANY efforts have been made to evaluate adhesion by relating adhesion to measured forces. Many of these are comparative and do not actually measure adhesion alone, but depend upon…

The Annular Aerofoil with Central Body and Propeller: An Approximate Method for the Estimation of the Velocity and Pressure Distribution over the Surface of a Circular Annular Aerofoil with Central Body and Propeller

Svetopolk Pivko

CONSIDER an isolated circular fairing whose cross‐sections along in the flow direction are of aerofoil shape, inclined at small angle of attack a, FIG. 1. By applying the general…

The Library Shelf

These volumes were published to honour a great scientist—who needs no introduction to readers of this journal—on his seventieth birthday. They contain his written contributions to…

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…

Tools for the Workshop

Kerry's (Engineering Co.) Ltd., of Grange Road, Leyton, London, E.10, are producing a pneumatic bench press of ½ to 1½ tons capacity. It is based on a design produced by Morphy…

Month in the Patent Office

An aircraft hood jettisoning system includes at least two jacks 13 placed for jettisoning the hood, each being operable by a detachable explosive having a firing pin, and passages…

U.S. Patent Specifications

A service door and emergency exit structure for aircraft having an outer surface formed with a service door opening therein, an annular service door receivable in said service…