Airport Installations

Eighteen purpose‐designed lighting units, have been built by Industrolite Ltd, to the specification of the Department of the Environment for the military ATC operators at the West Drayton ATC centre. The filter in each fitting has a circular polariser, and the luminaires are tilted to shine towards and at right angles to the face of the radar viewing units. Both the height and angle can be adjusted. The units have 5ft SOW fluorescent lamps and matt black louvres. Each line of 6 lamps is controlled by a switch and dimmer that can give a very low level of illumination without flicker. The total cost was about £1,400.