Located in the chart house is a small board readily visible from the door way to the chart house with the printed words: MAN ALOFT. What is its purpose?
At times it was necessary for a mechanic to climb the mast and service the radar antenna. Before ascending the mast he would display this sign and when back on deck slide it so that it was blank. If at that time the radar operator rotated the antenna whilst the mechanic was aloft the mechanic would have to jump and cling onto the antenna and go around with it or be pushed from the mast and fall in the sea or to the steel deck some 13 metres below. It was therefore imperative that radar operator check the board before rotating the antenna.
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