NEARLY twenty years have passed since the author had the pleasure of giving a paper on the same subject to this Society. Progress in the meantime as regards the means and art of flying has been not only sustained, but rapid, as is brought out by the simple facts contained in Table I. The amazing technology is well represented by the De Havilland Comet, which develops 460 h.p. with a weight ratio of 12 lb. per h.p. It therefore becomes interesting and perhaps useful to determine the extent to which metallurgy has contributed and is contributing.
Hatfield, W.H. (1935), "Ferrous Metallurgy in Aeronautics: A Complete Survey of the Qualities and Characteristics of Modern Steels for Aero Work", Aircraft Engineering and Aerospace Technology, Vol. 7 No. 5, pp. 113-125. https://doi.org/10.1108/eb029932
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