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There was some talk about turbine engines, direct application of steam, and the absence of pistons, rods, and cranks, all of which was beyond me, for I was familiar only with sailing craft; but I did understand the last words of the engineer. "Four thousand horse-power and forty-five miles an hour, though you wouldn't think it," he concluded proudly. "Say it again, man! Say it again!"
If one motor fails them when flying, about all the other is good for is to make a landing with. By reason of the great lightness of our airplane one good 400 horse-power motor is all we need for pulling purposes. But suppose this should fail, as any motor might do? We could not continue, any more than the other fellow, and would have to volplane to the ground.
The question of reducing the resistance by adopting 'stream-line' forms, along which the air could flow uninterruptedly without the formation of eddies, was not at first properly realised, though credit should be given to Edouard Nieuport, who in 1909 produced a monoplane with a very large body which almost completely enclosed the pilot and made the machine very fast, for those days, with low horse-power.
or a displacement of about 700 cubic feet, corresponding to a maximum draught of 3.7 feet. The mean speed is 4 knots, or 41/2 miles per hour, a great velocity being unnecessary, owing to the small distance to cross in a port often obstructed by the general movement of vessels taking place therein. The engine is from 16 to 18 horse-power.
If a chariot offered one a lift out of hell, one would not stop to inquire its horse-power. The apache helped her in and closed the door. She turned grateful eyes on him through the open window and with an expressive gesture showed him she had no purse. "Pas de quoi, mademoiselle," he responded gruffly, and her opinion of the French rose several points.
One of the earliest of the British-built Vee type engines was an eight-cylinder 50 horse-power by the Wolseley Company, constructed in 1908 with a cylinder bore of 3.75 inches and stroke of 5 inches, running at a normal speed of 1,350 revolutions per minute.
This experiment attracted great attention, showing how much heavier loads could be transported over rails than upon common roads, and with how much greater ease and less expense ordinary weights could be carried. The same had been demonstrated in England before. Locomotives were not yet used in either country, but only horse-power.
This was not, indeed, the first occasion on which a round trip, necessitating operation against the wind on at least one course, had been made. In 1884 Captain Renard had accomplished this feat for the first time with the fish-shaped balloon La France, driven by an electric motor of nine horse-power.
"That's the next thing Paul and I propose doing, although I expect we shall have a hard time getting enough money to meet the expense of materials. Of course we shall have the regular type of gasoline engine in place of this pneumatic arrangement, as this principle won't apply to big machines. I figure a 400 horse-power Liberty engine would carry such a machine two hundred miles an hour."
Twelve miles of our way that morning was by a trodden winter road, but the last four miles, after crossing Lurvey's Stream, had to be broken through three feet of snow in the woods, giving us four hours of tiresome tramping. We reached the lot at one o'clock, and during the afternoon set up the horse-power on the lake shore, at the foot of the slope where the white birch grew.
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