[S. Troop], 4th Durham Surrey Regiment operating a sound ranging machine near Ramacca.
Sound recorder equipment. The recorder operator Gunner Kenneth Brooke of Lancashire presses the recorder button, takes the film out of the trough and washes it in a bucket of water. He turns the end over and marks it. He hands the film to the film reader Gunner George Lloyd of Liverpool, who reads the modulations on the film to the film booker, Gunner Jock Anderson of Glasgow. Close up of Gunner Anderson writing down the readings as Gunner Lloyd dictates them. Gunner Anderson hands the readings to the plotter, Lance Bombardier Norman Blackburn of Yorkshire, who takes them to his plotting board. The plotter starts plotting positions taken from the readings. Close up of the plotting board as the plotter moves the wires into position. The plotter calculates the location of the gun, writes the calculations on a piece of paper and hands it to the Commanding Officer, Lieutenant E. Harris of Middlesex. Lieutenant Harris telephones the position of the enemy guns to the Counter Battery Officer. Most of the crew are bare-chested. A microphone in the field and wires leading back to Headquarters. Close up of the wires leading from the six microphones into the tent, down to the Battery and on to the Ranging machine. A soldier smoking a pipe talking on a headset.
Over two million American servicemen passed through Britain during the Second World War. In 1944, at the height of activity, up to half a million were based there with the United States Army Air Forces (USAAF). Their job was to man and maintain the vast fleets of aircraft needed to attack German cities and industry.