Military aeroplanes; an explanatory consideration of their characteristics, performances, construction, maintenance, and operation, for the use of aviators . e expense of ductility. In the annealed condition, which,because of the reduction in brittlencss, is desirable for aeroplane work,steels do not show much variation. A table is given of the strengthsof various grades of alloy steels, and the elongation or per cent that anylength will stretch before breakage is given, and is an indication of theductility. In aeroplane work, it is essential to have the maximum of reliability,and since local
Military aeroplanes; an explanatory consideration of their characteristics, performances, construction, maintenance, and operation, for the use of aviators . e expense of ductility. In the annealed condition, which,because of the reduction in brittlencss, is desirable for aeroplane work,steels do not show much variation. A table is given of the strengthsof various grades of alloy steels, and the elongation or per cent that anylength will stretch before breakage is given, and is an indication of theductility. In aeroplane work, it is essential to have the maximum of reliability,and since local thoughtless heating may have robbed a special steelof its special qualities, it is the best practice to proportion all parts for aductile, easily bent, mild carbon steel, with the strength given in thetable. Then, if any advantageous alloy like Vanadium steel is used, itsgreater resistance to fatigue is an added and much needed safety factor. The commercial names of tool steel, or drill rod (bars of toolsteel), refer to a specially uniform and reliable grade of rather pure steel,particularly adapted to being heat treated, tempered and hardened for 130.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectairplanes, bookyear19
