Operated by radio signals, a 17-foot model of a Navy blimp cruises along at 12 miles per hour and can be controlled up to a mile from the transmitter. The airship was built under the direction of Navy officers and is being flown in various parts of the country as part of the Navy recruiting program. A group of model-plane builders from Baltimore, Md., worked out the radio-control equipment, the fins and the two tiny gasoline engines which propel the small-size blimp.
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