most important consideration was that no person should be immersed, or even drenched by sea water during the transfer. Life expectation in these waters was four minutes. Even if the victim were immediately pulled from the water, it was still four minutes, unless the sodden clothing could be removed and heating provided. With this wind blowing, rising eight of the Beaufort scale at forty miles an hour and an air temperature of minus twenty degrees, the chill factor was at the extreme of stage seven which, translated into physical terms, meant that a few minutes exposure would numb and exhaust a man, and that mere survival was a matter of planning and precaution.
The second most important consideration was the physiological crisis of his passengers, when they left the comparative warmth and comfort and security of the ship for the shrieking cold and the violent discomfort of a life raft afloat in an Antarctic storm.
They had been briefed, and mentally prepared as much as was possible. An officer had checked each passenger’s clothing and survival equipment, they had been fed high sugar tablets to ward off the cold, and the life-raft allocations had been carefully worked out to provide balanced complements, each with a competent crew member in command. It was as much as he could do for them, and he turned his attention to the logistics of the transfer.
The lifeboats would go first, six of them, slung three on each side of the ship, each crewed by a navigation officer and five seamen. While the great drogue of the sea-anchor held the ship’s head into the wind and the sea, they would be swung outboard on their hydraulic derricks and the winches would lower them swiftly to the surface of a sea temporarily smoothed by the oil sprayed from the pumps in the bows. Although they were decked-in, powered, and equipped with radio, the lifeboats were not the ideal vehicles for survival in these conditions.
Within hours, the men aboard them would be exhausted by the cold. For this reason, none of the passengers would be aboard them. Instead, they would go into the big inflatable life-rafts, self-righting even in the worst seas and enclosed with a double skin of insulation. Equipped with emergency rations and battery powered locator beacons, they would ride the big black seas more easily and each provide shelter for twenty human beings, whose body warmth would keep the interior habitable, at least for the time it took to tow the rafts to land.
The motor lifeboats were merely the shepherds for the rafts. They would herd them together and then tow them in tandem to the sheltering arms of shackleton Bay.
Even in these blustering conditions, the tow should not take more than twelve hours. Each boat would tow five rafts, and though the crews of the motor boats would have to change, brought into the canopy of the rafts and rested, there should be no insurmountable difficulties;
Captain Reilly was hoping for a tow-speed of between three and four knots.
The lifeboats were packed with equipment and fuel and food sufficient to keep the shipwrecked party for a month, perhaps two on reduced rations, and once the calmer shores of the bay had been reached, the rafts would be carried ashore, the canopies reinforced with slabs of packed snow and transformed into igloo-type huts to shelter the survivors. They might be in Shackleton Bay a long time, for even when the French tug reached them, it could not take aboard six hundred persons, some would have to remain and await another rescue ship.
Captain Reilly took one more look at the land. It was very close now, and even in the gloom of the onrushing night, the peaks of ice and snow glittered like the fangs of some terrible and avaricious monster.
“All right,” he nodded to his First Officer, “we will begin.”
The Mate lifted the small two-way radio to his lips. “Fore-dec. Bridge. You may commence laying the oil now.”
From each side of the bows, the hoses threw up silver dragon-fly