Page:Rover Boys in the Air.djvu/21

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THE BOYS AND THE BIPLANE
9

other wooden blades. "Now then, all ready? Heave ahoy, my hearty!" he added, in sailor fashion.

Four times were the wooden blades "turned over" and still the engine refused to respond. It was hard work, and both of the lads perspired freely, for it was a hot day in early September.

"Got that spark connected all right?" panted Tom, as he stopped to catch his breath.

"Yes," was the reply, after Dick had made an inspection. "The engine is cold, that's all."

"Humph, well I'm not! But come on, let us give her another twist."

The brothers took hold again, and, at a word from Dick, each gave the wooden paddles of the propellers a vigorous turn. There came a sudden hiss, followed by a crack and a bang, and then off the engine started with the loudness of a gattling gun.

"Hurrah! she's started!" yelled Tom, triumphantly. "Say, but she makes some noise, doesn't she?" he added.

"I should say yes. That's because airship engines don't have mufflers, like autos," yelled back Dick, to make himself heard above the explosions.

"And see those propellers go around!" went on Tom, in deep admiration. "All you can see is a