She began the search in state four seas with only fair visibility and, two hours after dawn, homed in by friendly air cover, she rescued two Army aviators who had been floating in their lifejackets for three and one-half hours.
2.
If 10 U-Boats spaced 15 miles apart were searching a specific area, the pack could sweep the area in 2 days, and given fair visibility, would have a fair to good chance of locating the convoy . " B-Dienst " had computed the areas of probable greatest convoy density, and throughout the war had from two to six submarine groups patrolling these areas.
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