Operational squadrons returned to Calshot in March 1946, when No 201 Squadron arrived, to be followed a month later by No 230 Squadron, both equipped with Sunderlands. During the Berlin crisis of 1948, all the Sunderland aircraft from Calshot were called into action and flew over 1,000 sorties to the Berlin lakes from Hamburg carrying food into the city and evacuating sick children. On their return from Berlin, both squadrons were transferred to Pembroke.