The weight of the electrical equipment when it was finally set up was not far from two hundred thousand pounds. Altogether, when the oil, sand, and water tanks were filled, the great machine would weigh two hundred and eighty-five tons—a monster indeed!
"She is going to take a lot of current to run her," said Tom to his father, who was standing by. "When I come to arrange with the Shopton Electric Company for power, it's a question if they can give me all I need. And I must have plenty of current to make sure that my motors fill the bill."
"As your tests will be made in the daytime, the company should be able to furnish the power you need," rejoined Mr. Swift. "At night, of course, when they must furnish so much light as well as power, it might be difficult for them to give you the proper current."
"Forty-four hundred horsepower is a big demand," went on Tom. "I've got to have at least a three-thousand-volt direct-current to feed my motors. I will soon have to take up the matter with the Electric Company."
The heavy work of setting the electrical parts of the locomotive had been finished the day previous, and the track-derrick was removed. Tom was engaged in adjusting the more delicate parts of the equipment and had merely stepped down from the cab to speak to Mr. Swift.
Now he climbed back into the interior of the great machine which, in a general way, looked like a box car. An electric locomotive has not much of the appearance of a steam engine. The machinery is all boxed in and the entire floor of the locomotive is above even the drivers.
These six pairs of driving wheels were about seventy inches in diameter, while the diameter of the leading and following truck-wheels was but half that number of inches.
Mr. Swift had turned away from the locomotive when Tom put his head out of the door again.
"Do you hear that, father?" he demanded in a puzzled tone.
"Hear what, Tom?" asked the old inventor, looking up.