"But the
FBI will probably pick him up soon," he added.
"I sure hope so," Tom said.
A ten-hour sleep that night proved a fine tonic. Tom awoke the next
morning feeling entirely refreshed, and after a hearty breakfast,
hurried off to the plant. Here he plunged into work on his quality
analyzer sonar.
Much of the circuitry was assigned to the electronics department. The
finished boards and sub-assemblies were fed back to Tom in his private
laboratory. He himself assembled the major units.
At lunchtime, over a bowl of chili and crackers, Tom recalled another
problem. "We'll need an undetectable sub to test my analyzer," he mused.
"That means a repeat job of rigging all those transducers. Whew! I'd
better get busy on that plastic sheathing."
As soon as he had eaten, Tom phoned Arv Hanson, who arrived at the lab
in a few moments.
"You remember that idea I mentioned to Danny about molding all the
transducers into a single continuous plastic sheet?" As Arv nodded, Tom
went on, "Let's try it, using Tomasite as the plastic."
Tom picked up a pencil and quickly sketched out the production steps.
By machine-spacing the transmitting and the receiving transducers as
closely together as possible, with minimum clearance, the plastic
coating could do an even better job of absorbing sonar pings than the
hand-rigged model.
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