188 aircraft- 95 Wellingtons, 39 Halifaxes, 31 Lancasters, 23 Stirlings. 7 aircraft - 3 Halifaxes, 2 Wellingtons, r Lancaster, r Stirling - lost, 3·7 per cent of the force.
The Pathfinders encountered dense haze and their marking was late. The raid which developed was dispersed and not expected to cause much damage. Krefeld's rather general report on wartime bombing does not class this as a 'Grossangriff' - a major raid; only 3 streets in the northern part of the town are mentioned as being hit but most of the 41 people recorded as being killed by raids in 1942 probably died on this night.
source: The Bomber Command War Diaries, Martin Middlebrook and Chris Everitt
Bomber Command Museum Monthly ORB