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Updated: May 28, 2025
Hoddan sent out an unlocking signal, and a keyed transmitter began to send a signal on which to home. When the liner nudged alongside it, Hoddan's last contrivance operated and the yacht clung fast to the larger ship's hull. There were four days in overdrive. There were three or four pauses for position-finding.
The position-finding system consists of two or more ground stations fitted with apparatus capable of taking bearings with respect to true north and connected by direct telephone line. The aircraft calls up by wireless one of these stations, requests her position and then makes a series of signals for about half a minute.
Each of their hauling nets contained battered chisels, hammers, saws for metal, a radiation counter, a beaten-up-looking pistol, some old position-finding instruments, including a wristwatch that had seen much better days to be used as a chronometer.
Much has been done in the lighting and marking of aerodromes and in the equipment of aeroplanes with wireless telephone and direction-finding apparatus. It may here be mentioned that there are two methods of obtaining the position of aircraft by means of wireless telegraphy, known as direction-finding and position-finding.
The stations take the aircraft's bearings, plot its position, and transmit the information to the aircraft. Wireless direction and position-finding, as well as wireless telephony, have on several occasions proved their value to navigation, but in spite of instances of successful night flying, developments have not been such as to render night services practicable.
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