Operation "Shipwreck" - The rubber dinghy with the voluntary castaways aboard, photographed in the sea off Brest. A French vaval craft stands by in background.Ten French sailors, all volunteers, have been shipwrecked aboard a rubber dunghy in the Brest Roadstead.The sailors are taking part in an experiment which the French navy is carrying out, to find out the exact conditions of people surviving a shipwreck and is a continuation of the experiments first acrried out by Dr. Alain Bombard, the 30-year-old navigator, who crossed the Atlantic alone on a rubber Raft, to prove that shipwrecked sailors could survive on a diet fish and sea water. March 26, 1955. (Photo by Paul Popper, Paul Popper Ltd.).