Chain Home site still used as a military radar site but with no remains of the CH station on site after being rebuilt for Linesman/Mediator in 1964. Today it is the former home of an RAF TPS 77 RRH (remote radar head). RAF Boulmer is a working RAF building, which is housed in an ex-"ROTOR" R3 RAF Boulmer ('EZS') GCI R3 ROTOR Radar Station & Control and Reporting Centre in the UK Air Surveillance and Control System. In terms of current condition, the ROTOR sites vary from demolished to intact. For example, West Myne in Somerset was the last ROTOR 3 CHEL site. It was completed in 1957 after the introduction of the Type 80 radar and after many ROTOR stations had already closed. The site was within Exmoor National Park and its creation was strenuously opposed by the National Trust who lost no time in obliterating the site immediately after closure. Many of the buildings have been re-purposed since being active as ROTOR sites. An example is the Bawburgh R4 SOC which was re-purposed as SRHQ4.1 and then RGHQ4.1 to suit the evolving needs of government. The building is intact, but it has been significantly reconfigured since its use as a ROTOR SOC, notably with the addition of an extra floor and the flooring-over of the original R4 operations well. July 2019; Kent Underground Exploration are starting talks with TDC hoping to be given access to find and uncover the Foreness, Kent station which grid ref is TR 385710 References Further reading Watching the Skies, Jack Gough, HMSO 1993, Cold War: Building for Nuclear Confrontation 1946-89, Cocroft, Thomas and Barnwell, English Heritage 2003, External links The ROTOR radar system R3 Anstruther bunker, now a museum The Rotor Radar System, explanations & photographs Page about ROTOR at Subterranea Britannica Modern aerial photographs of 'retained' Chain Home and ROTOR sites Military radars of the United Kingdom History of the Royal Air Force United Kingdom nuclear command and control Air defence radar networks