With clear weather, the Germans launched three major raids. At 1200 hours, 150 aircraft flew over the Strait of Dover from Calais in France; No. 616 Squadron's Spitfire fighters of RAF Kenley and No. 264 Squadron's Defiant fighters were attacked and devastated by escorting German Bf 109 fighters; the German bombers split up after reaching Britain and bombed RAF Biggin Hill, RAF Kenley, and various towns in Kent. At 1500 hours, 170 German aircraft flew up the Thames estuary, but most were turned back by British fighters; 6 Do 17 bombers made it through the fighter defense and bombed RAF Debden, causing heavy damage. At 1600 hours, 55 German bombers of KG55 escorted by about 100 fighters attacked Portsmouth, but the group was repulsed by 5 No. 11 Group and 3 No. 10 Group squadrons. In total, the RAF lost 28 fighters and the Luftwaffe lost 22 bombers and 24 fighters. While the machine losses were heavy for both sides, the RAF only lost 6 airmen, while most of the downed German crews were killed or captured.
