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Operation Sunshine: First Crossing of a Submerged Vessel at North Pole (1958) Options
Daemon
Posted: Saturday, August 3, 2013 12:00:00 AM
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Operation Sunshine: First Crossing of a Submerged Vessel at North Pole (1958)

The USS Nautilus was the world's first operational nuclear-powered submarine. In 1958, the Nautilus embarked on Operation Sunshine, during which it completed the first submerged journey across the North Pole, resurfacing northeast of Greenland 96 hours later. During the mission, deep ice in the area of the Chukchi Sea forced the Nautilus to turn back temporarily. In the event that the submarine became trapped in ice, what dramatic action did its commander plan to take? More...
Christine
Posted: Saturday, August 3, 2013 9:47:53 AM
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Joined: 4/3/2009
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"Navigation beneath the arctic ice sheet was difficult. Above 85 degrees both magnetic compasses and normal gyrocompasses become inaccurate. A special gyrocompass built by Sperry Rand was installed shortly before the journey. There was a risk that the submarine would become disoriented beneath the ice and that the crew would have to play "longitude roulette". Commander Anderson had considered using torpedoes to blow a hole in the ice if the submarine needed to surface."

interesting!
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