one o'clock
As senior officer of the three submarines detached to operate in these waters , he was aware that U74 would not have left her station without orders from him . That part of the message had been sent merely as a `` blind '' , so that the crews of the remaining unterseebooten should not be discouraged . It was safe to conclude , decided Kapitan Schwalbe , that another of the blockaders had gone to the bottom for the last time . It was close on one o'clock when the `` wirelessing '' terminated . U75 , which had hitherto been running awash , was now trimmed for surface work . Most of the crew went on deck . Amongst them were Ross and Vernon , no one offering any objection .