However, thoughts of his new silent Air Scout soon drove
everything else from his mind, and as he guided the comparatively
silent machine on its quiet way toward his own home he was
thinking how he could best improve the muffler.
"Well, here we are again, safe and sound," remarked Tom, as he
brought the craft to a stop in front of the hangar, and Jackson
and his helpers, who were awaiting the return, hurried out to
take charge.
"Yes, everything seems to point to success, Tom," agreed Mr.
Damon. "That is, unless the slight accident we had means
trouble."
"Oh, no, that had nothing to do with the operation of the
silencer. But I'm going to do better yet. Some day I'll take you
for a ride in a silent machine which will make so little noise
that you can hear a pin drop."
"Well," remarked Mr. Damon' with a laugh, "I don't know that
listening to falling pins will give me any great amount of
pleasure, Tom, but I appreciate your meaning."
"Everything all right?" asked Mr. Swift, as he came out to hear
the details from his son. "Do you think you have solved the
problem?"
"Not completely, but I'll soon be able to write Q.
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