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Updated: May 27, 2025
The hum of the propellers had now risen to a kind of throaty roar; the craft was shaking with strange quivers that no doubt would cease if she but once could launch herself into the air. Under her, in and in, the shining metal rails came running swiftly and more swiftly still, gleaming silver-like under the vivid beam of the searchlight.
The propellers slowed down and the Astronef dropped with a hardly-perceptible shock in the midst of a little plateau covered with a thick, soft moss of a pale yellowish green, and fringed by a belt of trees which seemed to be over three hundred feet high, and whose foliage was a deep golden bronze.
With the aid of Jupe, the gas bag was inflated to a point where only a slight additional quantity of gas would cause the craft to shoot upward to the sky. When all was ready a test of the instruments was made and they were found to be working perfectly. The powerful alternator on the Wondership was, of course, worked by the same motor that drove the big propellers.
The sea was calm except for the white water at our bows and the two long radiating swells running far off into the distance upon either hand astern, forming a great V which our propellers filled with choppy waves. Benson was in the tower, we were bound for San Diego and all looked well.
These items of damage broken propellers, planes, or landing gear were all entered up very carefully on special bills, and presented from time to time to the dismayed novice; and a man who was clumsy or impetuous found learning to fly an expensive affair. There was a pupil who joined a school soon after Bleriot's crossing of the Channel by air.
The propellers had ceased revolving, and as there was no gas in the bag at that time, it having been decided to save the vapor for future needs, the Black Hawk began falling toward the earth. "We're going down!" yelled Ned. "Yes, the main motor has broken!" exclaimed Tom. "We'll have to descend to repair it." "Say!" yelled Mr. Damon, rushing in, "we're right over a big African village!
Two screw propellers, actuated by a pair of compound engines, were the means of driving the vessel, and they were placed at a slight angle to each other, so that when the engines were worked in opposite directions the Faraday could turn completely round in her own length.
The suspended car was 84 feet long, carrying both engines and crew, and the Willows idea of swivelling propellers for governing the direction was used in this vessel. In June of that year a new, small-type dirigible, the 'Beta, was produced, driven by a 30 horse-power Green engine with which she flew over 3,000 miles.
There was a flash of sparks as the copper conductor was severed, and then the shower of sparks about Tom's airship ceased. In another second he had turned on full power, the propellers whizzed with the quickness of light, and he rose in the air, off the shed roof, the live wire no longer entangling him.
It made me feel sick, so I ran orf an' came 'ere." Private Trotter was trembling in every limb. He was the pluckiest man I ever knew and capable of any piece of foolhardy daring. But this time he was near a nervous breakdown. We went to bed full of anxiety. For a long while we lay awake, straining our ears to catch the sound of firing or the drone of German propellers.
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