Us Official Photographs

Zippo radar at Harmon Field

When bad weather cuts visibility to a minimum, "Zippo", a high precision radar device, insures a safe landing to incoming aircraft at Harmon Field, Guam Air Depot, Guam, Marianas Islands. Operators at the cathode-ray screens and controls contact the plane approaching the field and by observing its position in the screens can correct to a foot the plane's vertical or lateral deviations from a pre-determined glide-path. Operators are Army Airways Communications System men attached to the 20th Air Force.