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airdrome which have a concrete conical base terminating in a centralized pillar, at the top of which are four electric lights with overhead reflectors which reflect the light against the projected face of the conical base. This is a very easy land mark light to be observed at night without any hazardous glare.

AERIAL AIRCRAFT CARRIERS.
  Experiments have been carried out by the English at the Isle of Grain with a view to determining the practicability of hooking on a cable suspended on each side of a battleship or from an airship. These tests were made by the Royal Air Force pilots with a Sopwith Snipe. A three eighths inch cable was suspended in this experiment between four poles (two at either end) situated 200 feet apart. The two poles at either extremity were far enough apart so that a machine cold very readily pass between them and engage the main three eights inch cable on flying directly underneath. This is fastened to the two "vee" wires which, in turn, are fastened to the two poles at either end of the course. On the main cable a wire loop, approximately eighteen inches in diameter, was loosely fastened. About eighteen inches above the top

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