On 1 November 1951 Norsel sailed from Göteborg on her third voyage to Maudheim; this time to evacuate the expedition. On board were the personnel and two aircraft of a Swedish Air Force unit. Air reconnaissance had been carried out in the expedition's first season by a British R.A.F. Flight. In the second season a Norwegian commercial flying unit had done some photography, and in the final season it was the turn of the Swedes to provide these services. In preparation for this the writer, who commanded the unit, had accompanied Norsel on her second voyage, and had thus been able to study the area, and discuss plans with members of the expedition.