Distinguished Flying Medal. Three weeks later, on 20 January 1943, Braham claimed a Do 217. No 141 Squadron's Beaufighter Mk.IF's moved to Cornwall in February 1943 to carry out night patrols over Brittany and France and daylight patrols over the Bay of Biscay and Atlantic Approaches to protect RAF Coastal Command aircraft. On 20 March 1943 he claimed a locomotive destroyed and soon afterwards was promoted to acting wing commander. In April Braham attacked a German E-Boat, firing 500 rounds of 20mm cannon at the target causing a large fire. On other operations Braham damaged three E-Boats while also strafing and damaging a U-boat. In May 1943 No 141 Squadron moved to RAF Wittering. It had been chosen to be the first purpose-built night fighter squadron to operate over Germany and occupied Europe in the bomber support role. The Beaufighters were equipped with the new Serrate radar detector, which picked up the radar impulses given out by the German night fighter's' Lichtenstein radar. A number of Beaufighters were also equipped with Mk IV radar, but not the more effective and recently introduced Mark VII. Serrate operations started in June 1943 and were given greater impetus as the Battle of the Ruhr was intensifying and Bomber Command's losses to German night fighters increased. Braham had immediate success, destroying a Messerschmitt Bf 110 over the Netherlands on 14 June and another nine days later. A claim was also made for a damaged Ju 88 after Braham's guns had jammed. In between these two successes, Braham was awarded a second bar to his DFC on 15 June 1943. Throughout June, 141 Squadron claimed five enemy fighters destroyed and two damaged for the loss of one Beaufighter. Braham noted the continuous operations were tiring Gregory and he arranged for him to be rested as squadron operational planning officer. His replacement was Flight Lieutenant Harry "Jacko" Jacobs. His most successful intruder operation took place on the night of the 17/18 August 1943, when he participated in 100 Group's support of RAF Bomber Command's Operation Hydra. Braham had decided that it was best to employ the British night fighters in a freelance role. Instead of operating over known German airfields, he elected to interpose the Beaufighters between the outward bomber stream and German airfields in the Netherlands, Germany and Belgium. He hoped that the echoes made by the Beaufighters on the German Lichtenstein radar would attract