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Like telephone poles along a highway, the dots and dashes of radio-beacons guide a pilot along U. S. airways. But if he wanders off the route in fog, storm or darkness, a pilot may find himself off the line of the beckoning signals just when he needs them most. Last week was brought forth a device by which the flyer, wherever he be, will be able to orient himself upon the nearest commercial broadcasting station.

The direction finder or "homing device" invented by Radioman Geodfrey G. Kruesi of Western Air Express is supplementary to the ordinary aircraft radio. If the pilot cannot pick up the signals of the beacon, he simply tunes in on the known wavelength of any broadcasting station in the region. A dial on his instrument board then shows him his direction of flight in relation to the position of the broadcasting station. Last week Inventor Kruesi took his invention to Asheville, N. C, there to confer with his ailing department chief Herbert Hoover Jr. Later he was to show it to Army air corps experimenters at Washington.

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