53 aircraft - 293 Lancasters, 182 Halifaxes, 89 Wellingtons, 76 Stirlings, 13 Mos¬uitoes. 30 aircraft - 9,Halifaxes, 8 Lancasters, 8 Wellingtons, 5 Stirlings - lost, 4·6 per cent of the force.
The aiming point for this raid was that part of Cologne situated on the east bank f the Rhine. Much industry was located there. Pathfinder ground marking was accurately maintained by both the Mosquito Oboe aircraft and the backers-up, allowing the Main Force to carry out another heavy attack on Cologne. 20 industrial remises and 2,200 houses were completely destroyed. 588 people were killed, approximately 1,000 were injured and 72,000 bombed out.
'l'hls night saw the first operations of' a new German unit, .Jagdgeschwader 300, equipped with single-engined fighters using the Wilde Sau (Wild Boar) technique. In this, a German pilot used any form of illumination available over a city being bombed - searchlights, target indicators, the glow of fires on the ground - to pick out a bomber for attack. Liaison with the local Flak defences was supposed to ensure that the Flak was limited to a certain height above which the Wild Boar fighter was free to operate. R.A.F. crews were not used to meeting German fighters over a target city and it was some time before the presence of the new danger was realized. The reports on this night from 4 bombers that they had been fired on over the target by other bombers were almost certainly the result of Wild Boar attacks. The new German unit claimed 12 bombers shot down over Cologne but had to share the 12 available aircraft found to have crashed with the local Flak, who also claimed 12 successes.
source: The Bomber Command War Diaries, Martin Middlebrook and Chris Everitt
Aircraft hit by flak during attack on Cologne on 3 / 4 July 1943. Bomb Aimer, A Dabous, bailed out without orders at 01.12. On return to England aircraft was abandoned and crashed near Gravesend.