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Updated: June 1, 2025
With a creaking and rattling noise it rose toward the invading fleet. From its filigree cockpit sides, men waved green branches. A green light wavered from the big plane that carried the bearded Council man and Denham. That plane swept forward and hovered above the ornithopter. The two flying things seemed almost fastened together, so closely did their pilots maintain that same speed and course.
There was a walkway in the center of the street with room for a multitude. But only two men were in sight upon it. "Lord!" said Tommy. "Where are the people?" There was brief talk among the crew of the ornithopter. Two of them picked up Tommy's weapons, and the pilot he had wounded made a gesture indicating that he should follow. He led the way to an arched door in the nearest tower.
Throughout the whole history of flight up to the outbreak of the European war development has been handicapped on the score of finance, and, since the arrival of the aeroplane, both ornithopter and helicopter schools have been handicapped by this consideration.
It may, however, be noted first that as far back as 1860, when Montgomery was only a boy, he was attracted to the study of aeronautical problems, and in 1883 he built his first machine, which was of the flapping-wing ornithopter type, and which showed its designer, with only one experiment, that he must design some other form of machine if he wished to attain to a successful flight.
THE ORTHOPTER. The term orthopter, or ornithopter, meaning bird wing, is applied to such flying machines as depend on wing motion to support them in the air. Unquestionably, a support can be obtained by beating on the air but to do so it is necessary to adopt the principle employed by nature to secure an upward propulsion.
They landed on a paved space perhaps a hundred yards by two hundred, three sides of which were walled off by soaring towers. The fourth gave off on empty space, and he realized that he was still at least a hundred feet above the ground. The ornithopter landed with a certain skilful precision and its wings ceased to beat.
At the outset he favoured the ornithopter principle, constructing a machine in the form of a bird with a wing-spread of twenty-six feet; this, according to Ader's conception, was to fly through the efforts of the operator. The result of such an attempt was past question and naturally the machine never left the ground.
And Tommy's fighting ships were subject to the same rifle fire against their propelling grids that had defeated the fleet from Rahn. The only thing the avenging fleet could now accomplish was the death of the women it could not save. War! A huge ornithopter came heavily out on the landing stage in the city of Rahn. Its crew took their places.
Smith's agent quickly reached his own flier, a small two-seater ornithopter finished in dull gray Smith's favorite color, incidentally and in a minute or two he was well under way. Smith had a chance to watch, at close range, the distorted S-motion of the machine's wings. But the flight lasted only a few minutes, and presently the craft was again at rest.
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