271 aircraft - 159 Wellingtons, 95 Stirlings, 17 Halifaxes. 18 aircraft- 9 Wellingtons,7 Stirlings,, 2 Halifaxes - lost, 6·6 per cent of the force.
The Pathfinders marked this target accurately and an effective attack followed. 130 buildings were totally destroyed and nearly 3,000 damaged. Production was stopped or reduced at 41 industrial premises. 130 people were killed, 269 injured and 6,954 bombed out of their homes.
source: The Bomber Command War Diaries, Martin Middlebrook and Chris Everitt