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None spoke or moved till the last of the dust had settled down again, turning the steel case of Salad's Statue ashy grey. 'You see you'll just have to take us over, the Mayor whispered. De Forest shrugged his shoulders. 'You talk as if executive capacity could be snatched out of the air like so much horse-power. Can't you manage yourselves on any terms? he said. 'We can, if you say so.
For ages, the rivers plunged down the mountainsides and exhausted their energies without any appreciable contribution to man's service; now they are estimated as so many units of horse-power, and we find that their fretting and foaming was merely a language which they employed to tell us of their strength and of their willingness to work for us.
My learned friend had known it for five-and-twenty years past, when it was in great part a wilderness, and all the work in progress. Apart from the reed-beds, which still surround and conceal the island, it is now a complete model farm. Surrounded by a dike, it is protected from any floods, and is intersected by canals, provided with water by a horse-power pumping-engine.
Driven by four Wolseley Maybach engines of 180 horse-power each, the lift of the vessel was not sufficient, so it was decided to remove the two engines in the after car and replace them by a single engine of 250 horsepower. With this the vessel reached the contract speed of 45 miles per hour with a cruising radius of 18 hours, equivalent to 800 miles when the engines were running at full speed.
It was intended to modify the plane design and fit a new propeller, in order to attain even better results, but, if trials were made with these modifications, the results are not obtainable. The Cosmos 'Lucifer' was a three-cylinder radial type engine of 100 horse-power, inverted Y design, made on the simplest possible principles with a view to quantity production and extreme reliability.
Dams on the Susquehanna River will soon make 30,000 horse-power available, which could be increased to 200,000 by building storage reservoirs. A dam just begun at the rapids of the Mississippi River at Keokuk, Iowa, will, when completed, furnish 200,000 horse-power. Niagara is producing 56,000 horse-power on the United States side.
An interesting type of pioneer radial engine was the Farcot, in which the cylinders were arranged in a horizontal plane, with a vertical crankshaft which operated the air-screw through bevel gearing. This was an eight-cylinder engine, developing 64 horse-power at 1,200 revolutions per minute.
The aerodrome, as completed and prepared for test, is briefly described by Professor Langley as 'built of steel, weighing complete about 730 lbs., supported by 1,040 feet of sustaining surface, having two propellers driven by a gas engine developing continuously over fifty brake horse-power.
In 1907, A. V. Roe, working under great difficulties, constructed and flew his first machine, a triplane fitted with an 8-10 horse-power twin cylinder Jap bicycle engine, the first tractor type machine produced by any country, and a very important contribution to the science of flight.
Moy anchored his machine to a pole running on a prepared circular track; his engine weighed 80 lbs. and, developing only three horse-power, gave him a speed of 12 miles an hour. He himself estimated that the machine would not rise until he could get a speed of 35 miles an hour, and his estimate was correct.
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