Other modifications introduced on the Mk II used on late Mk Is included replacing the elongated direction finding antenna with a loop aerial enclosed in a clear, tear-drop fairing on the top of the cabin. ASV Mk III was added with yagi antennae under the nose and wings and a Bristol B1.Mk.V turret with two Browning machine guns was fitted. The final British-built version of the Beaufort was the Pratt & Whitney-powered T.Mk.II, with 250 produced from August 1943. In this version, the turret was removed and faired over. The last ever Beaufort was a T.Mk.II, which left the Bristol Banwell factory on 25 November 1944.