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Bill’s position was to handle the early-warning plotting board.

Sir: I hardly expected to see the Russian bear on NORAD's plotting board�but there it is.

He had his mortar tube�but no base plate, no plotting board, no aiming stakes, no forward observer.

The duty controller, an Air Force captain, was quickly called; he made a fast check of the targets that had now been put on the plotting board and called to a jet fighter-interceptor base for a scramble.

These reports, usually passed on to the Air Force through the Air Defense Command's Ground Observer Corps, merely went on the UFO plotting board as a statistic.