Bahrain International Circuit that sand would blow onto the circuit and disrupt the race. However, organizers were able to keep the sand off the track by spraying an adhesive on the sand around the track. The surface of the track is made of graywacke aggregate, shipped to Bahrain from Bayston Hill quarry in Shropshire, England. The surface material is highly acclaimed by circuit bosses and Formula 1 drivers for the high level of grip it offers. The same aggregate material is used at the Yas Marina Circuit for the Abu Dhabi Grand Prix. The DRS zone is on the pit straight at the
Davidstow Circuit 89.88 mph. So Davidstow ended as a motor racing circuit; it has been a short career but by no means an inglorious one. There is a flourishing ultralight and microlight flying school at the airfield today. Davidstow Circuit Davidstow Circuit is a disused motor racing circuit and airfield built in Cornwall, in the United Kingdom. The circuit was built on the site of a World War II RAF Coastal Command base, RAF Davidstow Moor, opened in 1942. Davidstow circuit opened in 1952, and held three Formula 1 races between 1954 and 1955. The circuit hosted its last race in 1955,