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Pundit Beacon : ウィキペディア英語版 | Pundit Beacon
A Pundit Beacon or Landmark Beacon was an airfield navigational and identification beacon, used by the British Royal Air Force (RAF) in the period around WWII. == Pundit Code == Each airfield was allocated a unique two letter Pundit Code, usually based on the name of the site, such as 'BL' for RAF Beaulieu.〔 By the mid-war period the increasing number of airfields led to overlapping names. New codes were allocated by using the previously little-needed letters 'I', 'J', 'Q', 'U', 'V', 'Z' or 'X'. Harrowbeer thus became 'QB'. Some pre-war beacons had initially used a single letter code, but these were re-allocated two letter codes to avoid confusion with the lighthouse beacons. Codes were visible from the air, with high letters displayed alongside the Signals Square and Watch Office, usually near the control tower. Established airfields had concrete letters set into the grass, as still survive at Beaulieu.〔 Temporary or hurriedly constructed airfields used simple white paint on the tarmac.
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