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DEW LINE
Distant Early Warning
The Miracle of America's First Line of Defense
BY
RICHARD MORENUS
Acknowledgments
No book of this sort could ever be written without the whole-hearted co-operation of the men who planned, helped to build, and to service the DEW Line. In my entire writing career I have never experienced such friendly help as I had in securing the data for this book. I am grateful to Brig.-Gen. Stanley T. Wray, chief of the Air Materiel Commands Electronics Defense Systems Division, for his wise counsel and moral support For essential information and details I am especially grateful to Capt. James Sunderman, USAF, Major Ben Miley, USAF, Major Harvey Yorke, USAF, Lt.-Col. Charles F. Hinkle, USAF, Major Charles Franks, USAF, Major B. W. Clinger, USAF, Lt.-Col. Clair Towne, USA, Col. Broun Mayall, USAF, Major J. G. Rose, USAF, and members of the Royal Canadian Air Force. I am also grateful to J. Clifford Johnson of the Western Electric Company, as well as to many others who worked and serviced the Line, for their inestimable help.
R.M.
CHAPTER ONE THE LIFELINE
ONE OF THE GREATEST DRAMAS OF ALL time was being produced. The principals were four men whose attention was riveted on a huge map some thirty feet away. Their faces were grave with responsibility as they slowly but inexorably were being forced to issue one of the most critical commands in our history. It was a command that could instantly plunge our country into a state of atomic war. Their decision would be based upon the developments on the map they watched.
The scene was taking place in a large windowless room, thirty by sixty feet and two stories high, built into a block-constructed building located at CONAD, the Continental Air Defense Command at Colorado Springs, Colorado. The room itself was the Combat Operations Center.
The four men were high-ranking officers, the joint command of our Continental Air Defense Command under the Joint Chiefs of Staff. One of the four was the Commander-in-Chief of this operation under whose operational control are all the forces of the Army, the Navy, and the Air Force allocated or in any way assigned for air defense purposes. The other three officers were of the Army, the Navy, and the Air Force.
They were seated at a long desk in the glassed-in command booth set high into a wall of the big room. Below them, between the booth and the floor, two tiers of desks extended the length of the room. Here other men were sitting, singly, their full attention focused on the map. They were trained officer personnel who specialized in operating one of the most intricate and highly efficient communication systems in the world. This system insured direct contact with all Continental Air Defense Command units throughout the United States, Canada, Alaska, and Newfoundland. These men, too, were tensely alert as they watched, waiting for the word to come that they both expected and dreaded.
The room itself was silent; its sound-proofed walls and ceiling swallowed every sound. The semidarkness was broken only by light from the face of the map, from the shaded desk lamps along the tiers, and from the booth above. Although the atmosphere of the place was solemn, it crackled with a sense of vital expectancy.
The map on which their eyes were fastened showed the United States, Canada, Alaska, and the polar region etched on a single pane of plexiglass, twenty by thirty feet. It dominated the entire wall. On it the rapidly changing markings were being studied. The figures and symbols appeared as if by magic and as mysteriously disappeared only to reappear at a new point as operators, working on scaffolds behind, marked the code signs and numbers. Flashing colored lights in panels at either end of the mapyellow for alert and red for impending attackcompleted its function of presenting the position and flight pattern of every unidentified aircraft. This information was received from established radar defense sites unerringly detecting and reporting the presence of planes, and from alert members of the Ground Observer Corps, scanning the skies and funneling their findings through their local Filter Centers. As these data were forwarded to this operations center, the facts and figures appeared on the map. It all took just a few seconds. The markings showed the types of planes, if that had been established, their approximate altitude, and the direction in which they were flying. Their progress was maintained on the map until they were fully recognized and justified, or if necessary, taken out of the air.
This reporting goes on constantly, around the clock, for both the United States and Canada. The map is under continuous observationthe map which is the heart and soul of our countrys system of air defensethe four men sitting in the booth being its brains.
The pattern of the drama was now rapidly developing on the map. Each new marking added positive proof that a climax was close at hand. Hardly more than ten minutes before the map had been clear. Suddenly a light had flashed which indicated an alert. This warning was quickly followed by a chalk mark on the map to a place east of Alaska and north of the continental boundary. Apparently a message had been received from the DEW Line, the Distant Early Warning radar line, extending across our northernmost continental limits north of the Arctic Circle. There, at the first showing of an unidentified plane on one of its radar screens, word had been flashed by ionospheric scatter broadcast, which had then been picked up instantly by the CONAD receivers in Colorado Springs, and seconds later the news was chalked on the map.
As new symbols appeared, it was evident to the men watching that trouble was in the making. The latest marks showed alien planes in mass formation, jet-powered, flying at high altitude, and headed south. If these were Soviet planes on an attack missionand there was every reason to believe they might beit would be cause for serious concern.
Why the Soviets? There may be other nations equally opposed to our way of doing things, but no other nation, so opposed, has the air force or facilities for launching a large-scale attack against us. The direction from which we could most logically be attacked would be from across the polar regions. By that route any target in the United States is within a flying radius of 4,500 miles from Soviet bases.
As yet, however, in the drama that was progressing there was no detailed identification as to the exact type of aircraft these planes were; and the Soviets have several types. But since the planes had been identified as armed invaders, they must be turned back or destroyed before they could get through to a target and drop their loads of lethal luggage.
