Which German aircraft were used by the Regia Aeronautica Fighters Bombers and Fighter Bombers in the Battle of Britain?
None, I don't think the Italian Air Force was involved in the Battle of Britain.
Were italian aircraft and aircrews used by the luftwaffe and regia aeronautica for escort and patrol duty and service in the blitz and battle of britain?
On August 10 1940 the Germans had 875 high level bombers (Heinkel 111, Dornier 17 & Junkers Ju 88s) 316 dive bombers (Ju87 Stuka) & 929 fighters, mostly Messerschmitt Bf109s, of which 227 were Me 110s. The Stukas were soon withdrawn, because they were too slow against RAF fighters, to be used in the invasion, which as time would tell be in the East rather than against Britain.
RAF Fighter Command's primary fighters used in the Battle of Britain was the Hawker Hurricane and the Supermarine Spitfire. There were far more Hurricane's available and they proved effective against German bombers as well as fighters, however the Spitfire was more agile and a preferred choice to engage German fighters.
Britain had a number of defenses against bombers in WW2. A string of radar stations along the coast gave eary warning of an imminent attack, allowing fighter aircraft to be scrambled to defend. Day time fighters such as the Spitfire and Hurricane played a big part in this. At night radar-equipped nightfighters like the Bristol Beaufighter were used instead. Bombers making it through this first line of defence encountered anti-aircraft guns (supplemented by high powered…