SAW052504 SCOTLAND (1953). Radio mast, Auldhame, under construction. An oblique aerial photograph taken facing south-west. This image has been produced from a print.

This set of circles look like a Fleet Air Arm ORS target used for camera gun attacks only. The circles allow the angle of attack and distance to be measured from the resulting film. This type appeared just after WW2 and were still being used in the early 1960s. A 1958 danger area chart shows the area of this site to have the same danger marking as other known ORS targets, some of which were on disused airfields. This type differs slightly from the others in that is not a solid circle. The only question now is when was it laid out and when was it removed and how do these dates fit in with the experimental station? This land was probably used because it was relatively flat and already in Admiralty hands.