Science: Radar Speedometer

When modern jet planes land on an aircraft carrier, they must do it just right. This puts a strain on the landing signal officer. He must judge the speed of each approaching jet with great accuracy and wave it off for another try if it is moving either too fast or too slow. He has little margin for error and he must make his decision in a split second.

A new "speedometer" built by Raytheon Manufacturing Co. eases the Job of the LSO. It watches the approaching jet by radar and measures its speed accurately. This information, fed into an electronic computer,...

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