Heliport Beacon Design, Construction, and Testing

摘要

A helicopter beacon production prototype was designed, constructed, and tested for optical performance and resistance to environmental conditions. he revolving beam beacon employs two 250 W, 130 V tungsten-halogen lamps, one each for the aviation green and aviation yellow projectors, and one 500 W, 120 V tungsten-halogen lamp for the white split beam projector. Lamp life is in excess of 5,000 hours at 115 V except with the 500 W lamp of the white beam projector, for which no 5,000 lamp has yet been found. The life of this lamp is approximately 3500 hours. The entire beacon system is sealed against the environment. The complete device weighs less than 50 pounds and can be mounted on standard light poles. It is about 16 inches in diameter and 24 inches tall. (Author)