Science: Omnirange to Guide Them

The time is coming when an airliner can fly through the air (stormy) with the greatest of ease and land on an airport (fogbound) as if the day were clear. Last week the Civil Aeronautics Authority was busily installing "omniranges": the key gadget of the new navigation system. Two hundred and seventy of them are already in place. By early next summer there will be over 400, blanketing nearly all the U.S.

Under the old system, airliners are led from airport to airport by radio ranges which sound an on-course signal in the pilot's ears only when the plane is in one...

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