Aircraft Engineering and Aerospace Technology: Volume 24 Issue 6

A Topic of the Hour

FATIGUE has recently become news. Owing largely to certain scare articles in the daily Press the public has been made fatigue‐conscious. This has resulted in a quite unjustifiable…

The Filtration of Fine Particles: An Analysis of Filter Performance with an Account of Test Methods

R.W. Cranston

In this analysis or the action of fine particle filters and the discussion of methods of test, the following principal conclusions are reached:

An American Method of Photographing Flow Patterns

FLOW visualization work was started at Notre Dame in 1937. Its initial aim was to improve lecture presentation and at the same time to shorten the lecture time given to flow…

Pre‐tensioning for Preventing Fatigue Failure in Bolts: Simple Theory and an Account of Experiments Carried Out at the R.A.E.

W.A.P. Fisher, R.H. Cross, G.M. Norris

The prevention of fatigue in bolts by controlled pre‐tensioning is investigated theoretically. It is shown that the effect of pre‐tension is to reduce the alternating load in the…

Thin Multi‐Walled Sections: Finding the Distribution of Direct Shear Stress and the Position of the Flexural Axis

William Morse

There is quite a lot of literature showing how to find the distribution of shear stress on a thin multi‐walled section under the action of an applied torque. In actual fact…

Cross‐Flow Heat Exchangers‐Part I: A Summary of the General Theory Applicable to Coolers and Heaters

J.K. Reid B.Sc.

THE cross‐flow type of heat exchanger is used extensively on aircraft in the form of ‘coolers’, e.g. for air conditioning systems, engine oil coolers, etc., and in the form of…

The Critical Flow of Gases Through Nozzles: A Letter from a Canadian Authority Summing‐up the Previous Correspondence on the Subject

DEAR SIR. The undersigned has read with considerable interest and pleasure the lively discussion on this matter, which has run through the June 1951 to March 1952 issues of…

Research Reports and Memoranda

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

Tools for the Workshop

This instrument is manufactured by Goodmans Industries, Limited, Axiom Works, Wembley, Middlesex. It consists of a moving coil armature operating in the field of a large permanent…

U.S. Patent Specifications

In a metal rotor blade for rotary wing aircraft, a spanwise load carrying spar, a blade retention fitting by which the blade is adapted to be connected to a rotor hub, said…