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THIS month we are resuming the series of articles on the jigging of modern airframes which started to appear in consecutive issues at the end of the last volume. The interval has been due to circumstances connected with the times over which we have had no control, but we now hope to be able to...
EACH blade of an airscrew is submitted to an elementary static balance check after it has been completed. But this operation does not eliminate the necessity to carry out a general balance of the complete airscrew. This is carried out statically, first of all for the hub alone, and then...
AS the basis of this examination I have taken the results obtained by H. Roxbee Cox in his Statistical Method of Investigating Relations between Elastic Stiffnesses of AeroplaneWings and WingAileron Flutter, which may be briefly recalled.
In the spring of 1937, takeoff tests down slopes of various gradients were carried out by the Flugtechnisch Institut. The gradients reached up to 35 deg. The experimental results are compared with calculation. The efficiency of this method of takeoff, together with its advantages and...
THE values of the load factors used in designing an aeroplane are almost direct measures of its strength. They also affect the weight of a certain portion of the aeroplane structure. Although the percentage of gross weight that depends directly on the magnitude of the design load factors is not...
When the first edition of this book was published five years ago, it was considered to be something different in Engineering textbooks. It presented the last word on the subject with which it dealt.
If it is true to say that the primary factor governing the arrangement for the production of a fuselage is the type of structural design chosen it is no less a fact that a wing is far more amenable to rearrangement for production and allows the jig designer greater scope. Naturally, the relative...
THE need for effective washing equipment for acroengine parts is more important today than it has ever been. The apparatus shown in Fig. 1 is for washing engines taken from crashed aeroplanes before they are dismantled prior to reassembly. The same machine can also be used for washing quantities...
Walter Max Hahnemann, BerlinMarienfelde, and Ernst Kramar, BerlinTempelhof, Germany, assignors to C. Lorenz Aktiengesellschaft, BerlinTempelhof, Germany, a company. Application November 19, 1937. Serial No. 175,429. In Germany May 10, 1933. 5 Claims. Cl. 25011.
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