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swept backward and also upturned at the wing-tips which, though it gave a certain measure of automatic stability, rendered the machine somewhat clumsy in the air, and their performances were not on the whole as high as those of either France or Great Britain.

304 Early in 1914 it became known that the

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experimental work of Edward Busk—who was so lamentably killed during an experimental flight later in the year—following upon the researches of Bairstow and others had resulted in the 深圳桑拿会所微信 production at the Royal Aircraft Factory at Farnborough of a truly automatically stable aeroplane. This was the ‘R.E.’ (Reconnaissance Experimental), a development of the B.E. which has already been referred to. The remarkable feature of this design was that there was no particular device to which one could point 深圳按摩特服 out as the cause of the stability. The stable result was attained simply by detailed design of each part of the aeroplane, with due regard to its relation to, and effect on, other parts in the air. Weights and areas were so nicely arranged that under practically any conditions the machine tended to right itself. It did not, therefore,

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claim to be a machine which it was impossible to upset, but one which if left to itself would tend to right itself from whatever direction a gust might come. When the principles were extended 深圳夜生活推荐 to the ‘B.E. 2c’ type (largely used at the outbreak of the War) the latter machine, if the engine were switched off at a height of not less than 1,000 feet above the ground, would after a few moments assume its correct gliding angle and glide down to the ground.

The Paris Aero Salon of December, 1913, had been 深圳桑拿按摩论坛 remarkable chiefly for the large number of machines of which the chassis and bodywork had been constructed of steel-tubing; for the excess of monoplanes over biplanes; and (in the latter) predominance of ‘pusher’ machines (with propeller in rear of the main planes) compared with the growing British preference for ‘tractors’ (with air-screw in front). Incidentally, the305 Maurice Farman, the last relic of the old type box-kite with elevator in front appeared shorn of this prefix, and became known as the ‘short-horn’ in 深圳桑拿按摩技师照 contradistinction to its front-elevatored predecessor which, owing to its general reliability and easy flying capabilities, had long been affectionately called the ‘mechanical cow.’ The 1913 Salon also saw some lingering attempts at attaining automatic stability by pendulum and other freak devices.

Apart from the appearance 深圳按摩三路指数对照表 of ‘R.E.1,’ perhaps the most notable development towards the end of 1913 was the appearance of the Sopwith ‘Tabloid’ tractor biplane. This single-seater machine, evolved from the two-seater previously referred to, fitted with a Gnome engine of 80 horse-power, had the, for those days, remarkable speed of 92 miles an hour; while a still more notable feature was that it could remain in level flight at not more than 37 miles per hour. This machine is of particular importance because it was the prototype and forerunner 深圳按摩小姐q of the successive designs of single-seater scout fighting machines which were used so extensively from 1914 to 1918. It was also probably the first machine to be capable of reaching a height of 1,000 feet within one minute. It was closely followed by the ‘Bristol Bullet,’ which was exhibited at the Olympia Aero Show of 深圳桑拿技师照片 March, 1914. This last pre-war show was mainly remarkable for the good workmanship displayed—rather than for any distinct advance in design. In fact, there was a notable diversity in the types displayed, but 深圳桑拿深圳站街 in detailed design considerable improvements were to be seen, such as the general adoption of stranded steel cable in place of piano wire for the main bracing.
IV THE WAR PERIOD
Up to this point an attempt has been made to give some idea of the progress that was made during the eleven years that had elapsed since 深圳按摩休闲会所资料 the days of the Wrights’ first fligh