FIDO
Fog Intense Dispersal Of?
Do you really think the wartime crabs would have come up with anything so clumsy?
It was Fog Investigation and Dispersal Operation
Used at the purpose built emergency landing fields along the east coast such as Manston. In fact the huge brick-built petrol tanks used for the operation at Manston are still standing alongside the Ramsgate road.
Sorry to go off-topic. Well done Evil J