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Updated: June 7, 2025
It is not our purpose to give a treatise on this subject but to confine this chapter to an exposition of a few of the gliders and model forms which are found to be most efficient for experimental work. AN EFFICIENT GLIDER. Probably the simplest and most efficient glider, and one which can be made in a few moments, is to make a copy of the deltoid kite, previously referred to.
Such a motion naturally disturbs the fore and aft stability of the gliding machine, by tilting up the forward margin, and it banks against the air, instead of gliding. The constant fear of all gliders is, that the machine will point downwardly, and his motion, as well as the position of the body, tend to shoot it upwardly, instead.
As it would be a point of structural weakness to make the wings narrow and very long, Wenham many years ago suggested the idea of placing one plane above the other, and later on Chanute, an engineer, used that form almost exclusively, in experimenting with his gliders.
A good glider launched from a second-floor window facing a large lawn should travel many yards before coming to grass. Large gliders of the types detailed above can be made of very stout paper stiffened with slips of cane or bamboo; but the time they demand in construction might perhaps be more profitably spent on a power-driven aeroplane such as forms the subject of the next chapter.
He was reading the article on gliders in June, 1905, so early in the history of air conquest that its suggestions were miraculous to him; for it was three years before Wilbur Wright was to startle the world by his flights at Le Mans; four years before Blériot was to cross the Channel though, indeed, it was a year and a half after the Wrights' first secret ascent in a motor-driven aeroplane at Kittyhawk, and fourteen years after Lilienthal had begun that epochal series of glider-flights which was followed by the experiments of Pilcher and Chanute, Langley and Montgomery.
If the last is as low as 1 in 10, so that the model falls but 1 foot vertically while progressing 10 feet horizontally, the glider is one to be proud of. Materials. The materials needed for the gliders to be described are moderately stout paper cream-laid notepaper is somewhat heavy for the purpose and a little sealing wax or thin sheet metal for weighting.
Jack Altshuler's pulling a fast one. Here we go, Freddy, hang on!" He slapped his flap brake lever with his left hand, winged over and began dropping like a shot as his gliding angle fell off from twenty-five to one to ten to one. In seconds the other two gliders were after him, riding his tail.
Soon the two gliders were on even terms, but it was soon seen that the rival boat carried more sail, and was better built for racing. It began to forge ahead of the Spider. "I'll tell them you're coming!" jeered Sam Batty as he waved his hand to those he was leaving behind. "Oh, can't you beat him?" exclaimed Mollie impulsively. "Do try, Allen!" "I will, but they have the better boat."
Going to want your guns so hidden that those two gliders of McCord's will fail to spot them." The marshal grimaced in the direction of Joe Mauser, who, having his instructions, had fallen back from the table again. "When you reintroduced aerial observation to the fracas, major, you set off a whole train of related factors.
The gliders were found so stable, more especially the biplane form, that in the end Chanute permitted amateurs to make trials under guidance, and throughout the whole series of experiments not a single accident occurred.
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