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An Air traffic obstacle is a tall structure which can endanger air traffic. Air traffic obstacles have to be marked in most cases with red and white colored marking and with red lights at night-times. At larger structures blinking lights are required. Image File history File links Wiki_letter_w. ...

In earier days sometimes lamps similiar like those used on lighthouses were sometimes in use. There are still such lamps on Fernsehturm Stuttgart at Stuttgart, Germany. The Fernsehturm Stuttgart (TV Tower Stuttgart) is the worlds first TV tower built from concrete (and prototype for many towers of that kind all over the world). ...

A special way for marking was used at the mast of Deutschlandsender Herzberg/Elster in 1939. Its lense-like top was lit by rotating skybeamers. By this no electrical installation were requred on this mast, which showed as insulated mast radator a high voltage against ground. The Deutschlandsender Herzberg/Elster was a 500 kilowatt long-wave transmitter at Herzberg/Elster, which was in service from 1939 to 1945. ...

Weblinks

• List of air-traffic obstacles in Germany (also a useful tool for finding out the height of tall structures in Germany)