A modified two-seater F.4 for jet-conversion and advanced training was tested in 1949 as the T.7. It was accepted by the RAF and the Fleet Air Arm and became a common addition to the various export packages (for example 43 to Belgium 1948–57, a similar number to the Netherlands over the same period, two to Syria in 1952, six to Israel in 1953, etc.). Despite its limitations—unpressurized cockpit, no armament, limited instructor instrumentation—over 650 T.7s were manufactured. The T.7 would operate for a considerable length of time in RAF service; small numbers remained operational into the 1970s.