Now I can guide
this in two ways: by the electric mechanism which swings the
trailer wheels to either side, or by varying the speed of
the two motors that work the caterpillar belts. So if one
breaks down, I have the other."
"Got any guns aboard her--I mean machine guns?" asked Ned.
"Not yet. But I'm going to install some. I wanted to get
the tank in proper working order first. The guns are only
incidental, though of course they're vitally necessary when
she goes into action. I've got 'em all ready to put in. But
first I'm going to try the grippers."
"Oh, you mean the gap-bridgers?" asked Ned.
"That's it," answered Tom. "Look out, we're going over a
rough spot now."
And they did. Ned was greatly shaken up, and fairly tossed
from side to side of the steering tower. For the tank
contained no springs, except such as were installed around
the most delicate machinery, and it was like riding in a
dump cart over a very rough road.
"However, that's part of the game," Tom observed.
Tank A reached her "harbor" safely--in other words, the
machine shop enclosed by the high fence, inside of which she
had been built.
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