Word: dashboards
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Dates: during 1923-1923
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...operation of the set is simple -as it must be for a man piloting an airplane, who has to receive or send messages while continuing his trip. Throwing a switch and turning a large knob till an ammeter on the dashboard shows a maximum reading is the whole tuning up process. A motor generator set, driven by a storage battery which the engine charges just as an automobile does, supplies the necessary pressure of 1,000 volts. Two hundred feet of trailing wire, let out when the plane leaves the ground, constitutes the antenna...