Navy Times – This month, a photograph appeared on the Internet of the propeller on an Ohio-class ballistic missile submarine at Trident Submarine Base in Bangor. A key to the submarine’s ability to deploy and remain undetected, propeller designs have been kept under wraps for years, literally. When out of the water, the propellers typically are draped with tarps. The propeller image appeared on Microsoft’s mapping tool, Virtual Earth.
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