I have just added this to the map of places to fly your drone at Drone Scene:
Perched on the high ridges above Margam and Port Talbot, the remains at Graig Fawr represent a critical chapter in Britain’s World War II coastal defence. This site functioned as a Chain Home Low (CHL) radar station, specifically designed to detect low-flying enemy aircraft that the primary "Chain Home" system might miss.
Operational by the early 1940s, it provided vital early warning for the industrial heartlands of South Wales and the strategic shipping lanes of the Bristol Channel.
Once a low-flying raider was spotted, the information was flashed to the Sector Operations Room, which would then scramble Beaufighters or Hurricanes from nearby RAF Fairwood Common (now Swansea Airport) to intercept.
Other than to others interested in military history, the concrete remains themselves may not be the big draw for a long climb up from the valley below. It’s the location and the views it offers that make this a recommended place to visit and fly around – not a great surprise when you consider the location was chosen because of its clear and unobstructed commanding views over the Bristol Channel it needed to perform its vital task
The top-down and close-up aerials reveal the rugged, reinforced concrete foundations. These pillbox structures were built to withstand near misses from Luftwaffe bombers. You can see the distinct rectangular footprints where the transmitter and receiver huts once stood, shielded by thick earthen embankments that are still partially visible.
The panoramic shots emphasize why this specific peak was chosen. From this height, the radar had an unobstructed "line of sight" across the water.
The iron-stained concrete indicates where the massive metal gantries for the rotating antennae were anchored. These antennae scanned the horizon 24/7, manned by members of the RAF and WAAF who lived in nearby temporary camps.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 18/04/2026. It remains the responsibility of any pilot to check for any changes before flying at the same location. Landowner permission may be required before taking off.
