De Havilland Mosquito
80 Wing was later incorporated in 100 (Bomber Support) Group, which was formed at Radlett in November 1943 under Addison (by now promoted to Air Commodore and later to Air Vice-Marshal) to operate radio-countermeasures as part of RAF Bomber Command. By the end of the war 100 (BS) Group was based at Bylaugh Hall in Norfolk with 13 operational squadrons flying a variety of aircraft equipped for radio countermeasures and De Havilland Mosquito intruders directly to attack "Luftwaffe" night fighters.