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时间: 2019年12月14日 08:04

An important result of this experimental work was that it in many cases enabled designers to produce aeroplane parts from less costly material than had previously been considered necessary, without impairing the strength. It may be mentioned that it was found undesirable to use welded joints on aircraft in any part where the material is subject to a tensile or bending load, owing to the danger resulting from bad workmanship causing the material to become brittle鈥攁n effect which cannot be discovered except by cutting through the weld, which, of course, involves a test to destruction. Written, as it has been, in August, 1920, it is impossible in this chapter to give any conception of how the developments of War will be applied to commercial aeroplanes, as few truly commercial machines have yet been designed, and even those still show distinct traces of the survival of war mentality. When, however, the inevitable recasting of ideas arrives, it will become evident, whatever the apparent modification in the relative importance of different aspects of design, that enormous advances were made under the impetus of War which have left an indelible mark on progress. Another notable figure of the early period was 鈥楾ommy鈥?Sopwith, who took his flying brevet at Brooklands in November of 1910, and within four days made the British duration record of 108 miles in 3 hours 12 minutes. On December 18th, 1910, he won the Baron de Forrest prize of 锟?,000 for the longest flight from England to the Continent, flying from Eastchurch197 to Tirlemont, Belgium, in three hours, a distance of 161 miles. After two years of touring in America, he returned to England and established a flying school. In 1912 he won the first aerial Derby, and in 1913 a machine of his design, a tractor biplane, raised the British height record to 13,000 feet (June 16th, at Brooklands). First as aviator, and then as designer, Sopwith has done much useful work in aviation. Maxfield looked into the fire instead of at Powell, as he said, "What has been putting this into your head?" You're flourishing, at all events, ch猫re madame, said Algernon, looking at his mother with unfeigned satisfaction. It was a relief to him to see a contented, smiling, comfortable countenance. Nevertheless, although agreeable to look upon, Mrs. Errington was apt to become a little wearisome in point of conversation, and her dutiful son cast his eyes round the circle in search of a pleasant seat wherein to bestow himself. But his glance met no response. Rose McDougall had drawn near his wife, and after very stiffly returning his bow, had ceased to take any notice of him, markedly avoiding his eye, and keeping silence after he had spoken. Violet was divided between listening to the elder Mrs. Errington and watching her sister. Castalia was more lazy, more silent, more indifferent than usual. Algernon was as unaccustomed as a spoiled child to be taken no notice of. He to stand among those women as a person of secondary importance, not greeted, not flattered, not smiled upon! We get no help: that's the problem, she said, in a clear, even voice with a tone that recalled Mary Tyler Moore. "We have one secretary for nine people in the arts and architecture department. She's terribly overworked," Anne went on, sweeping her hands like an orchestra conductor toward the stack of mail. "You're looking at what's left after I've thrown away half of it. I make up the review schedule for the week based on these releases." Cody on his new aeroplane. 高清成年美女黄网站色大全 Very. John says he likes the West Side to much that "my friends have to drag me to the East Side. I do all my shopping on the West Side because I figure, why shouldn't I help out my friends who live here by shopping at their stores?" When John decided to open his own store, he called up his boyhood friend Paul Abbott to run it. The pair were classmates from grammar school through high school. Borrowing! No; you're one of the lucky folks of this world, who can grant favours instead of asking them. But it really is of small consequence, after all; I'll manage somehow, if you have any objection. I believe I have a nabob of a godfather, General Indigo, as yellow as a guinea and as rich as a Jew. My mother was talking of him the other day, and, perhaps, it would be better to ask such a little favour of one's own people. I'll look up the nabob, Mr. Maxfield. One day, when she entered the oblong drawing-room, Castalia perceived that Mrs. Errington was not there; but, instead of her, there was a young lady, sitting at work by the window, who lifted a lovely, blushing face as Castalia entered the room, and stammered out, in evident embarrassment, that Mrs. Errington would be there in a few minutes, and, meanwhile, would not the lady take a seat? Beg pardon, ma'am, said Algernon, laughing. And with the laughter, the cloud cleared from his brow. Clouds never rested there long.