Within a few hours any unlighted temporary airfield can be illuminated for night take-offs and landings with portable lighting equipment tested recently by the U. S. Army Air Forces at Wright Field, Dayton, O. A flosdlight unit on Wheels tontains a 9-kilowatt, 32-volt, gasoline-driven power plant to light six floodlamps of 1,500 watts each. The beam lights a 90-degree sector and the lamps can be elevated and inclined at will. In addition, there are portable lights for outlining a landing strip up to 400 feet wide and 5,200 feet long. If desired the same lights can be used to outline a general landing area or to form one string of light up to 10,000 feet in length. These lamps and the reels of cable, together with a lightweight 500-watt, 110-volt power plant, weigh 1,800 pounds when packed in trunks, and may be carried in an air transport. A number of 1 1/2-ton trucks, fitted with four-wheel drives for rough going, are being procured for transporting the apparatus.