Signal square, RAF Atherstone on Stour
The site of a signal square, a series of concrete shapes laid out on the ground. They were associated with the Second World War airfield to the north east of Atherstone on Stour. The signal square was designed to provide instructions to pilots flying over the airfield.
1 An arrangement of concrete pathways laid out in geometric shapes so as to be visible from the air. Each shape, or signal, had a special meaning (eg land on runways only), so that by covering those not required simple instructions could be given to aircraft overhead. This signal square is about 43ft x 43ft (13m x 13m). Adjacent to the square, and also laid in concrete, is the single letter N. This should be the station identification, but other sources give the station identification as NF.
2 Sketch and description.
3 Notes with diagrams on airfield ground markings.