During the Berlin Airlift, the Station was modernised with a long concrete runway, using 794 German workers, in March 1947. Along with the American airfield of Tempelhof and the French airfield of Tegel, RAF Gatow played a key role in the Berlin airlift of 1948. Initially, about 150 Douglas Dakotas and 40 Avro Yorks were used to fly supplies into Gatow. By 18 July 1948, the RAF was flying 995 tons of supplies per day into the airfield.