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Thumbnail preview of 1924 - 0220.pdf...ompletion at the Rochester works of Short Bros. To begin with, the machine is built entirely of metal (with the exception of the wing covering), and the material mainly used in the construction is duralumin. This, in itself, stamps the machine as being out of the ordinary, as this material has not hitherto been used to any great extent in the construc tion of aeroplanes. Its application to t...
1924 - 0220.pdf
Thumbnail preview of 1926 - 0159.pdf...ARCH 11, 1925 DURALUMIN CONSTRUCTION ON ORIGINAL LINES Some Impressions of a Visit to the Works of Short Brothers FOR very many years the development of aircraft construction in Duralumin was retarded, as far as Gr...
1926 - 0159.pdf
Thumbnail preview of 1926 - 0362.pdf...n readily be removed from the bath at the termination of the period of heating. It is exceedingly difficult and in fact almost impossible to state with any precision the time that is required to heat Duralumin to the normalising temperature in a salt bath. The time required depends upon the type of furnace, its capacity, the nature of the material that is being heated, and the quantity that is put...
1926 - 0362.pdf
Thumbnail preview of 1926 - 0423.pdf...f the metal removes the greater part of the corrosion and also removes the seat of the reaction. It therein' causes the corrosion to come to an end. It does not neces- sarily, however, remove all the Duralumin which has been affected by the corrosion and such metal may suffer consider- ably from the presence of internal lesions. Such material is usually weak and relatively brittle, and is thereby ...
1926 - 0423.pdf
Thumbnail preview of 1926 - 0528.pdf...UPPLEMENT TO FLIGHT JULY 29, 1926 THE AIRCRAFT ENGINEER with the use of suitable'and proved heating appliances. The relatively slow absorption of heat by Duralumin has already been dealt with at length in connection with the heat-treatment process. Naturally, the same limitations have to be borne in mind in connection with the heating of the metal for ...
1926 - 0528.pdf
Thumbnail preview of 1926 - 0791.pdf...CRAFT ENGINEER SUPPLEMENT TOFLIGHT (i.e., normalised), the section should be produced with an adequate radius in the corner, and should not be obtained "" sharp." In the construction of articles from Duralumin it is cus- tomary to rely upon riveted joints. It would, of course, be a particularly convenient thing under many circumstances if welded or soldered joints could be made in the metal and re...
1926 - 0791.pdf
Thumbnail preview of 1926 - 0200.pdf...t. The development of these alloys did not come all of a sudden, but by the year 1909, or thereabouts, the development had proceeded sufficiently far for the alloy, which has ever since been known as Duralumin, to be fairly definitely standardised as regards composition and treatment. The discovery of Duralumin, of course, was a very considerable achievement, and it is highly significant that alth...
1926 - 0200.pdf
Thumbnail preview of 1926 - 0300.pdf...UPPLEMENT TO FLIGHT 44 THE AIRCRAFT ENGINEER APRIL 29, 1926 What change of properties does occur is, however, of the nature of an improvement rather than the reverse, and the instability of Duralumin is represented by a process that results in a continuous improvement of the metal. For all practical purposes, however, it is clear that Duralumin has become stable after a period of ageing ...
1926 - 0300.pdf
Thumbnail preview of 1926 - 0527.pdf...uly 29, 1926 Supplement to FLIGHT ENGINEERINGSECTION Edited by C. M. POULSEN July 29, 1926 CONTENTS Duralumin. By Leslie Aitchison, D.Met., B.Sc, F.I.C., M.I.A.E. Airscrew Tip Speeds. By K. K. Pierson Aircraft Performance. By J. D. North, F.R.Ae.Soc Technical Literature 67 71 OUR CONTRIBUTORS Dr. Le...
1926 - 0527.pdf
Thumbnail preview of 1919 - 0682.pdf...tensile strength, with an elongation of about 15 per cent. This process of hardening continues for a very long period, the strength slightly increasing at the expense of the elonga tion. Heating duralumin to 300° C. and then quenching out In ordering strip care should be taken to order the exact width required, since the process of splitting the strip in variably gives it a curve which can...
1919 - 0682.pdf
Thumbnail preview of 1923 - 0019.pdf...ANUARY I I , 1923 E S B 0 S S S The Hanriot all- metal biplane : This view, taken from above, gives a good idea of the single-spar wing construction. Both in the fuse- lage and wings, channel section Duralumin is used extensively. H H H H H H H a a H a a a a a a a a a a a a a 0 a a a a a form of sheet steel fittings, some of which are of somewhat complicated shape, but all of which appear extremel...
1923 - 0019.pdf
Thumbnail preview of 1920 - 0933.pdf...UGUST 26, 1920 further heating the elongation increases with increasing experiments on tne influence of weathering on the strength temperature. Consequently wherever duralumin is exposed of duralumin which have been carried on by the Durener- to heat the possible decrease of strength must always be Metallwerke for three years, have shown that no observable conside...
1920 - 0933.pdf
Thumbnail preview of 1926 - 0790.pdf...5 t- 7-1 per cent., giving a new figure of 14 • 65 per cent, for the structure of the wings with changed aspect ratio. (To be continued.) * International Air Congress, London, 1923. Report, page 210. DURALUMIN By LESLIE AITCHISON, D.Met., B.Sc, F.I.C., M.I.A.E. (Continued from j). 81) From what has been written previously, it is obvious that Duralumin is available to industry in a very considerabl...
1926 - 0790.pdf
Thumbnail preview of 1926 - 0059.pdf...tals corrode more rapidly than others, but in any case, certain -definite conditions are required to bring about this manufacturers who use metal for construction purposes. The writer's experience of Duralumin in connection with^the machines built by Short Brothers, and the numerous experi- ments carried out at our Rochester works, extending over nine years, on samples of steel and Duralumin, is a...
1926 - 0059.pdf
Thumbnail preview of 1920 - 0931.pdf...UGUST 26, 1920 DURALUMIN BY E. UNGER AND E. SCHMIDT (Translated'from Teckmsche Benchte, VolTHE use of duralumin in the construction of aircraft makes an account of the properties of this material desirable,especiall...
1920 - 0931.pdf
Thumbnail preview of 1926 - 0160.pdf...hulls and seaplane floats are tested. This equipment has been of inestimable value in producing hulls and floats having a good water performance. troubles which formed the main drawback to the use of Duralumin in the earlier days, the Duralumin hull should also score on the point of durability, so that everything con- cidered, it will scarcely be denied that this form of construc- tion holds out g...
1926 - 0160.pdf
Thumbnail preview of 1920 - 0932.pdf...ments described below. Experiments have been made (see Fig. 3) by the Durener- Metallwerke to determine the most favourable quenching temperature. The curve "a" shows the variation in the strength of duralumin which had been aged for four days with the variation of quenching temperature. Curve "b" shows the strength immediately after the quenching. The strengths were determined in both cases by th...
1920 - 0932.pdf
Thumbnail preview of 1920 - 0795.pdf... of the show. This is the first time in the history of aviation that a British machine built of metal throughout, even to the wing covering, has been exhibited. It is, moreover, the first time an all-Duralumin—or practically so—aeroplane has been built in this country. It is not strictly true that the Short is built entirely of duralumin, as the wing spars are steel tubes and a few fittings here a...
1920 - 0795.pdf
Thumbnail preview of 1937 - 2733.pdf...the effect of variable area.—ED.) * The equation is, of course, only ol the second degree in S. In practice it » easier to solve the equation by drawing graphs as in the next part of this article. DURALUMIN TT is a somewhat curioas fact that, in spite of the very -*• large application during recent years of Duralumin to aircraft construction, the literature readily available to those unable...
1937 - 2733.pdf
Thumbnail preview of 1924 - 0381.pdf... of layers of three-ply tulip wood, rolled and crossed over one another and covered with fabric. The engine section consists of two ply-wood spars supported by an arrangement of tubular steel and duralumin. In the lower part of the fuselage are two dura lumin struts, to which are attached the bottom planes and the landing chassis. The top plane is in two sections, and is attached to a verti...
1924 - 0381.pdf
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