夜間戦闘機
In October 1942 AA Command reorganised its structure, replacing the AA Divisions with AA Groups coinciding with RAF Fighter Command's Groups. 41 Searchlight Regiment came under 5 AA Group, which reorganised its defences in January 1943. 41 S/L Regiment was ordered to take over searchlight sites defending the Humber Estuary, 362 Bty going to Pollington, 364 Bty going to Scunthorpe, while 363 Bty and Regimental HQ moved to the Militia Camp at Thorne, near Doncaster. On the night of 9 March 1943, a Dornier 217 picked up by the searchlights engaged two of the regiment's sites at Yokefleet with bombs, incendiaries and flares. In August 1943, 362 Bty moved from Pollington to North Cave. By now, Luftwaffe bombing raids were rare, and the regiment concentrated on 'Bullseye' exercises to practise cooperation with Night fighter aircraft.